CN112661243A - Alkaline beauty water - Google Patents
Alkaline beauty water Download PDFInfo
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- CN112661243A CN112661243A CN202110000413.XA CN202110000413A CN112661243A CN 112661243 A CN112661243 A CN 112661243A CN 202110000413 A CN202110000413 A CN 202110000413A CN 112661243 A CN112661243 A CN 112661243A
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- Prior art keywords
- water
- cathode
- alkaline
- salt
- nickel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 159
- 229910001868 water Inorganic materials 0.000 title claims abstract description 121
- 230000003796 beauty Effects 0.000 title claims abstract description 24
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 22
- 239000006260 foam Substances 0.000 claims abstract description 13
- 239000007769 metal material Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 59
- 238000005406 washing Methods 0.000 claims description 53
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 31
- 239000003011 anion exchange membrane Substances 0.000 claims description 29
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 28
- 229910052759 nickel Inorganic materials 0.000 claims description 25
- -1 alkyl imidazole halide Chemical class 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 23
- 239000003513 alkali Substances 0.000 claims description 22
- 239000002253 acid Substances 0.000 claims description 21
- 239000002537 cosmetic Substances 0.000 claims description 21
- 239000008213 purified water Substances 0.000 claims description 21
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 238000004070 electrodeposition Methods 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 238000005238 degreasing Methods 0.000 claims description 18
- 239000008367 deionised water Substances 0.000 claims description 17
- 229910021641 deionized water Inorganic materials 0.000 claims description 17
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 17
- 239000011736 potassium bicarbonate Substances 0.000 claims description 17
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 17
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 16
- 235000011181 potassium carbonates Nutrition 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- 239000012670 alkaline solution Substances 0.000 claims description 14
- 150000002603 lanthanum Chemical class 0.000 claims description 14
- 150000002815 nickel Chemical class 0.000 claims description 14
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 13
- 238000005260 corrosion Methods 0.000 claims description 13
- DHBXNPKRAUYBTH-UHFFFAOYSA-N 1,1-ethanedithiol Chemical compound CC(S)S DHBXNPKRAUYBTH-UHFFFAOYSA-N 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical group Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
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- 239000011259 mixed solution Substances 0.000 claims description 10
- 239000003792 electrolyte Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 6
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- 239000007789 gas Substances 0.000 claims description 6
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 claims description 6
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical group Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
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- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 6
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 5
- 150000004820 halides Chemical class 0.000 claims 1
- 230000033116 oxidation-reduction process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 239000001257 hydrogen Substances 0.000 description 13
- 230000009467 reduction Effects 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052746 lanthanum Inorganic materials 0.000 description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 4
- 229910001414 potassium ion Inorganic materials 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 2
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- 206010011732 Cyst Diseases 0.000 description 2
- 102000006587 Glutathione peroxidase Human genes 0.000 description 2
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- 229910000858 La alloy Inorganic materials 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 102000019197 Superoxide Dismutase Human genes 0.000 description 2
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- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 2
- 235000010261 calcium sulphite Nutrition 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
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- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
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- 206010012735 Diarrhoea Diseases 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
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- 206010020601 Hyperchlorhydria Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- WSMYVTOQOOLQHP-UHFFFAOYSA-N Malondialdehyde Chemical compound O=CCC=O WSMYVTOQOOLQHP-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- SFASQLIGRADPEE-UHFFFAOYSA-N [AlH3].[Ni].[La] Chemical compound [AlH3].[Ni].[La] SFASQLIGRADPEE-UHFFFAOYSA-N 0.000 description 1
- PZVZIBZXQFHVOV-UHFFFAOYSA-N [S].S1SCC=C1.CC Chemical compound [S].S1SCC=C1.CC PZVZIBZXQFHVOV-UHFFFAOYSA-N 0.000 description 1
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Images
Abstract
The invention provides beauty water, which is obtained by using a sulfur-doped porous Ni-La/foam metal material as a cathode and purifying water through electrolysis, wherein the oxidation-reduction potential of the beauty water is negative, the pH is maintained at 8.5-9.5 for more than or equal to 60 days under a normal-temperature and normal-pressure sealing condition, and the ORP range of newly-prepared beauty water is-27 mV to-120 mV.
Description
Technical Field
The invention relates to a preparation method of alkaline beauty water, belonging to the field of drinking water for daily use and beauty treatment by preparing alkalescent ionized water through electrolyzing water.
Background
The electrolytic reduction water is safe drinking water and is alkalescent (pH is more than 7); the water molecule group is about 5-6 water molecules, the movement speed in the organism is 2 times of 11-13 water molecules of purified water or tap water, the molecular activity is relatively high, so a large amount of small molecular water has different functions; the oxygen content is high, the negative potential is high, the peroxide in vivo can be removed, and the effects of disease prevention and aging resistance are achieved; contains abundant minerals in ionic state. The electrolytic reduction water completely meets the sanitary standard of domestic drinking water in China, and researches prove that the electrolytic reduction water can be used as an auxiliary means for preventing and treating diseases after being drunk for a long time, and abnormal conditions of liver and kidney and various physiological indexes are not found. Alkaline ionized water is firstly brought into the visual field of people in the medical field, and the water ionizer is accepted by people as a medical instrument.
As drinking water, the pH value of the body fluid of a healthy human body is about 7.4, and the intestinal fluid is mostly alkalescent. At present, most of foods drunk by people are acidic foods, so that the pace of life is accelerated, the pressure of work and study is increased, and the body fluid is gradually acidified due to lack of movement, so that various functions of the body are weakened, excrement cannot be smoothly discharged, the burden of kidney and liver is increased, and various chronic diseases are caused. If people drink alkalescent ionic water frequently, harmful acidic metabolites in the body can be neutralized, the body partial acid state can be corrected, the effects of adjusting the acid-base balance of the human body and keeping the health of the body can be achieved, and the treatment effect on digestive disorder symptoms such as dyspepsia, hyperacidity, chronic diarrhea and the like caused by abnormal fermentation in intestines and stomach can be achieved. Only the weakly alkaline ionized water obtained after electrolysis has the unique function.
The micromolecule ionized water contains rich ionized oxygen, has a reducing group in a negative potential state, directly or indirectly eliminates lipid peroxidation metabolites such as malondialdehyde, lipofuscin and glycosylation end products generated in the in vivo oxidative metabolism process, and free radicals such as H2O2, ROO and the like, and simultaneously can directly or indirectly improve the activity of in vivo antioxidant enzymes such as superoxide dismutase (SOD), Catalase (CAT), glutathione peroxidase (GPx) and the like, improve the oxidation resistance of the organism, maintain the redox balance of the organism and achieve the beautifying effect.
Along with the improvement of living standard of people, the interest on health is more and more close, the electrolyzed and reduced water is accepted by people as novel functional drinking water, and the electrolyzed and reduced water conforms to six essential conditions of good drinking water proposed by the United nations, the property of the water is most close to the water quality of the longevity village, and the electrolyzed and reduced water is potential good health-care water. With the continuous and deep research on the functions of the electrolyzed water and the fact that the electrolyzed water machine is a common commodity and enters common families, the application field of the electrolyzed and reduced water is wider.
The mechanism of electrolyzing and reducing water is simple, and the water enters an electrolytic bath and reacts on the anode and the cathode as follows:
H2O=OH-+H+
at the cathode: 2H2O+2e-=2OH-+H2↑
At the anode: 2H2O =4H++O2↑+ 4 e-
As the electrons pass through the circuit, the cathode progressively accumulates to include Na+，K+，Ca2+，Mg2+The pH value of the water is increased to 8-10 along with the generation of light radicals and hydrogen, the oxidation-reduction potential is reduced to a negative value, and alkaline water containing metal ions such as calcium, sodium, potassium and the like is generated in the cathode chamber, namely the beauty water produced by the invention.
In addition, as described above, the key of beauty water preparation is that electricity is applied, hydrogen is reduced at the cathode by electrons, hydroxyl groups are left, and weakly alkaline electrolyzed and reduced water is obtained as long as the conductive function is satisfied, and the threshold is extremely low, so that a cathode electrode for researching electrolyzed and reduced water is rarely available in the prior art.
As for the electrode, the present invention considers that the cathode for electrolytically reducing water should have the following functions: (1) the real specific surface area of the electrode; (2) increasing the intrinsic catalytic activity of the electrode material.
Disclosure of Invention
Aiming at the defects and the existing problems of the research of the electrolysis reduction water electrode, the invention provides the alkalescent beautifying water, in the electrolysis process, the used porous sulfur is doped with the La-Ni catalyst and has extremely high performance of catalyzing hydrogen evolution to generate alkalescent ionized water, the hydrogen evolution potential is only-310 mV, and the exchange current density is 40.3mA/cm2The alkalescent ionized water obtained by the method has the advantages of high yield, high efficiency, low oxidation-reduction potential and high stability.
An alkaline cosmetic water is obtained by electrolyzing purified water by taking a porous Ni-La/foam metal material as a cathode, the cosmetic water is maintained at pH8.5-9.5 for more than or equal to 60 days under the sealing condition of normal temperature and pressure, the ORP value of the cosmetic water is a negative value, the ORP range is-27 mV to-120 mV, the ORP is changed to be positive within the range of 18-32h, and the preparation process of the sulfur-doped porous Ni-La/foam metal cathode comprises the following steps:
(a) nickel salt, aluminium salt, lanthanum salt, alkyl imidazole halide and ethane dithiol are used as electrolyte molten salt, copper net or nickel net is used as cathode, high-purity aluminium plate is used as anodeThe electrodeposition condition is 5-15A/dm2At a temperature of 40-50 deg.CoC, the time is 30min-4h, and the atmosphere is inert gas;
(b) placing the electrode subjected to the electrodeposition in the step (2) in an alkaline solution for corrosion treatment;
(c) placing the cathode subjected to the heat treatment in the step (2) under the inert gas condition for heat treatment;
(d) and washing and drying to obtain the cathode.
Further, the electrolysis process is as follows:
(1) performing purification pretreatment on a water source to obtain purified water;
(2) taking a sulfur-doped porous Ni-La/foam metal material as a cathode, taking platinized copper as an anode, and dividing the electrolytic tank into an anode chamber, a middle chamber and a cathode chamber by using an anion exchange membrane I and an anion exchange membrane II, wherein the anion exchange membrane I is close to the anode, the anion exchange membrane II is close to the cathode, a mixed solution of potassium carbonate, potassium bicarbonate and purified water is introduced into the middle chamber, the purified water is introduced into the cathode chamber and the anode chamber, and the power supply is switched on for electrolysis;
(3) after electrolysis for a period of time, measuring the pH value of the catholyte by using a pH value on-line monitor, and collecting the catholyte after reaching a specified range to obtain the beauty water.
Further, the nickel salt is nickel sulfate or nickel nitrate, the aluminum salt is aluminum chloride or aluminum nitrate, the lanthanum salt is lanthanum chloride or lanthanum nitrate, the alkyl imidazole halide is one of EMIC, BMIC or MPIC, and the nickel salt content is as follows: 150-200 g/L; the content of the aluminum salt is 20-30g/L, the content of the lanthanum salt is 15-20g/L, and the content of the ethane dithiol is 3-5 g/L.
Further, the nickel net or the copper net is pretreated, the pretreatment comprises heat treatment, degreasing, alkali washing and acid washing, and the heat treatment is 200-250-oC，N2Gas protection, 20-60min, degreasing liquid is acetone, and alkali washing is 30oC3-5min, 15-20wt.% NaOH, 3-5min, and 5-15wt.% HCl by acid washing for 3-5min, wherein deionized water is used for washing after degreasing, alkali washing and acid washing.
Further, said step (b)The alkaline solution in (1) is 30-35wt.% NaOH, and the volume ratio is 4: (1-1.5) deionized water and ethanol, and ultrasonic stirring at 30-40kHz, power of 200-300W and temperature of 30-35 kHz during the corrosion processoC, the time for the heat treatment in the step (C) is 12-24h, and the temperature is 450-oC。
Further, the concentration of the potassium carbonate in the mixed solution of the potassium carbonate, the potassium bicarbonate and the purified water is 0.5-0.75M.
Further, the concentration of potassium bicarbonate is 0.75-1.25M.
Further, the power supply voltage is 10-25V.
Further, the electrolysis time is 1-10 min.
Further, the yield of cosmetic water in the cathode chamber is 15-17L/h.
The preparation method of the invention comprises the following steps:
(1) pretreatment of water source: factors such as water source, seasonality, process, water sterilization and disinfection can affect the quality of the weakly alkaline electrolyzed and reduced water. The common quality problems of the alkalescent electrolytic reduction water produced by the process are mainly mouth
The quality of the water can be effectively improved by selecting a proper water source and improving the process method due to abnormal taste and smell, such as chlorine smell, soil smell, odor of byproducts possibly accompanied in the production process and the like.
The water source of the invention is drinking water, and the drinking water is pretreated as follows:
(a) a special fiber layer: the characteristic fiber layer is used for filtering large-particle impurities such as rust, dust or moss with the particle size of more than 5 microns.
(b) And (3) treating granular activated carbon: used for removing impurities such as chlorine, VOC, heavy metals, pesticides, peculiar smell and the like.
(c) And (3) calcium sulfite treatment: used for removing chlorine gas, heavy metals and the like remained in water.
(d) Silver-plated particle activated carbon treatment: can be used for sterilizing and inhibiting growth of pathogenic bacteria.
(e) 0.1 micrometer ultra-fine filtering membrane for filtering substances of 0.1 micrometer or more, including pathogenic bacteria and cyst.
The pretreated water is treated in the steps (a) to (e) in sequence.
(2) And selecting and planning electrode materials.
As described in the background above: the present invention recognizes that the cathode for electrolytically reducing water should have the following functions: the real specific surface area of the electrode; increasing the intrinsic catalytic activity of the electrode material.
First, with respect to the inherent catalytic activity, the existing electrodes for the electrolytic reduction of water are generally mainly nickel-based alloys such as Ni — Cu, Ni — Fe, Ni — Mo, and then doped by metal elements in order to obtain excellent catalytic activity.
The invention still uses nickel-based alloy, transition element selects lanthanum for doping, sulfur element is used for further improving the catalytic activity to hydrogen, theoretically
The electron distribution state of Ni element is 1s22s22p63s23d84s2Wherein 3d8According to the principle of lowest energy, two unpaired electrons are distributed on the d orbit, so that the metallic nickel has better capability of dissociating and adsorbing H.
The electron distribution state of La element is [ Xe]5d16s2The outer layer of the lanthanum atom has four empty orbitals and one unpaired electron, which is easily paired with the 1s orbit of the hydrogen atom to form a La-H adsorption bond.
The electron distribution state of the S element is 3p4, and two unpaired electrons are distributed on the p orbital.
When Ni atoms and La atoms are alloyed according to a certain proportion and doped by S, the electrode material can show excellent catalytic adsorption and dissociation H performance. In the catalysis process, electrons are transferred from Ni to La, so that La in the electrode material forms La-H adsorption bonds, and the hydrogen evolution performance of the electrode material is influenced by the fact that the adsorption bonds are too strong and difficult to desorb or the adsorption bonds are too weak and difficult to adsorb. Ni has good desorption capacity, and compared with the strong H adsorption effect of La, the dissociation effect of nickel is limited, so that the dissociation effect of nickel ions is improved by using two unpaired electrons of S atoms, and when the La adsorption effect and the S-Ni desorption effect gradually reach the optimal state, the synergistic effect of the La adsorption effect, the S-Ni adsorption effect and the S-Ni desorption effect is highlighted.
Based on the support of the theory, the Ni-La alloy is selected and modified by S.
Secondly, with regard to the large specific surface area: porous metal substrates, such as nickel foam and copper foam, are used as the metal substrate, but commercial metal foams are usually macroporous and do not contribute significantly to the specific surface area, and the invention uses a dealloying method to prepare the porous metal substrate.
But the person skilled in the art knows that: the reduction potential of nickel is-0.25V, but the reduction potential of lanthanum ion is more negative (-2.38 Vvs. SHE), and the difference with the reduction potential of nickel ion is larger, so it is difficult to electrodeposit from aqueous solution electrodeposition, in order to simultaneously precipitate lanthanum and nickel, the dosage of nickel can be increased, the dosage of La can be reduced, or the complexing agent can be used to neutralize the reduction potentials of both, but the total effect of electrodeposition is not good, so that the ionic liquid system is adopted, the ionic liquid is an organic salt which is composed of anion and cation, is liquid at room temperature or near room temperature, has the excellent performances of wide electrochemical window, good conductivity, wide liquid range, no vapor pressure, good stability and the like, and is a green solvent. In the aspect of electrodeposition, the ionic liquid combines the advantages of high-temperature molten salt and aqueous solution: the alloy has wider electrochemical window and good conductivity, can obtain metal and alloy which can be electrodeposited only in high-temperature molten salt at room temperature, but has no strong corrosivity like the high-temperature molten salt; meanwhile, most metals which can be obtained in the aqueous solution can be obtained by electrodepositing in the ionic liquid without side reaction, so that the obtained metal has better quality and higher current efficiency, particularly for metals and alloys thereof, such as aluminum and the like, which are difficult to obtain by electrodeposition in the aqueous solution. The above characteristics and good conductivity of ionic liquid make it a new liquid for electrodeposition research, and is increasingly applied to electrodeposition of metals.
Performing electrodeposition on Ni-Al-La alloy through an ionic liquid system, and then performing alkali washing to obtain micropores and mesopores, wherein the alkaline solution is 30-35wt.% of NaOH, and the volume ratio is 4: (1-1.5) a mixture of deionized water and ethanol.
The sodium hydroxide here has two functions: (1) removing aluminum; (2) removing the effect of alkyl imidazole halide, especially chlorine, aluminum as amphoteric oxide can be dissolved by acid and alkali simultaneously, removing aluminum by alkali increases the surface area of the alloy, and the specific surface area is about 20-23g/m2. Secondly, because the main component of the electrolytic solution is alkyl imidazole halide, part of alkyl imidazole halide ionic liquid is inevitably existed on the surface of the porous electrode, if the subsequent heat treatment is directly carried out, the halogen can be obviously adsorbed on the surface of the metal electrode to influence the capability of adsorbing and dissociating hydrogen of the electrode, the alkyl imidazole halide can be usually removed by washing, but in the process of removing the alkyl imidazole halide by washing, the ethane dithiol sulfur source can be inevitably removed by washing, which is not desired to be seen by the invention, so a method for removing the alkyl imidazole halide ionic liquid and ensuring the content of the ethane dithiol is needed.
As would be known to those skilled in the art. Mercaptan can be dissolved in an ethanol solution of sodium hydroxide to generate relatively stable salt, water-insoluble mercaptide can be formed in the presence of nickel, alkyl imidazolium halide can be dissolved in an aqueous solution of sodium hydroxide and cannot be deposited, namely, the alkyl imidazolium halide deposited in the electrolytic process can be effectively removed, the influence of chloride is avoided, namely, aluminum can be effectively removed by using an alkaline solution to obtain micro-mesopores, and the obtained specific surface area is 20-23g/m2And the content of the sulfur source is not influenced while the alkyl imidazole halide is removed.
The corrosion process is accompanied by ultrasonic stirring at 30-40kHz, power of 200-300W and temperature of 30-35 kHzoAnd C, the ultrasonic treatment can effectively enable the corrosive liquid and the cathode to be in full contact to obtain a porous structure, and the influence of halogen is avoided.
(4) And (3) placing the cathode under the inert gas condition for heat treatment:
the time for heat treatment is 12-24h, and the temperature is 450-650-oThermal decomposition of C, ethane dithiol to 400oc, mercaptides are generally less than 450oC, decomposed sulfides, e.g. hydrogen sulfide, 300oDirectly decomposing to form sulfur and carrying out a vulcanization reaction on the La-Ni, wherein the minimum treatment temperature of the invention is 450 DEGoC, preferably 600oC is not particularly limited as long as melting of the nickel plating layer or the nickel base material does not occur.
(5) An electrolysis device: as shown in figure 1, the invention uses a sulfur-doped porous Ni-La/foam metal material as a cathode, uses an inert metal material as an anode, and uses an anion exchange membrane I and an anion exchange membrane II to divide an electrolytic tank into an anode chamber, an intermediate chamber and a cathode chamber, wherein the anion exchange membrane I is close to the anode, the anion exchange membrane II is close to the cathode, a mixed solution of potassium carbonate, potassium bicarbonate and purified water is introduced into the intermediate chamber, the purified water is introduced into the cathode chamber and the anode chamber, a power supply is switched on for electrolysis, the mixed solution of potassium carbonate, potassium bicarbonate and purified water is introduced into the intermediate chamber, the concentration of the potassium carbonate is 0.5-0.75M, the concentration of the potassium bicarbonate is 0.75-1.25M, namely, the anions existing in the intermediate chamber comprise CO3 2- ，HCO3 -，OH-，Cl-，NO3 -，SO4 2-In the presence of a cation having H+，Ca2+，Mg2+，K+，Na+，Fe2+。
An anion exchange membrane I is arranged near the anode, and CO can only pass through anions under the drive of current3 2-，HCO3 -，OH-，Cl-，NO3 -，SO4 2-Moving to the cathode, oxidation reaction occurs at the cathode, in the prior art, water is directly electrolyzed, oxygen is generated, meanwhile, toxic gases such as chlorine, nitride and the like are obviously generated, and OH is considered according to the standard electrode potential-/O2=0.401V；Cl-/Cl2=1.36V；NO3-/NO2=0.8V；NO3-NO = 0.96V; when the toxic gas exists, the corrosion to the electrolytic cell is obvious, and the anion obtained acid solution also hasContamination, therefore introduction of CO therein3 2- ，HCO3 -To produce harmless CO2，I.e. the reaction taking place at the cathode has CO3 2-+H+→HCO3 -; HCO3 -+H+→H2CO3; H2CO3→CO2+H2O;H2O→1/2O2+2H+. I.e. only CO is evolved at the anode2And O2In addition, the addition of the potassium bicarbonate can effectively shorten the reaction process and improve the reaction efficiency.
Based on the above, it can be obviously obtained that the mixed solution of potassium carbonate, potassium bicarbonate and purified water is introduced into the intermediate chamber, so that the toxic gas can be effectively prevented from being separated out from the anode, and the acidic water can be obtained.
The membrane II is close to the cathode and can be selected from anion exchange membrane or cation exchange membrane in theory, as the skilled person will need.
When the exchange membrane II is a cation exchange membrane, the content of ions such as calcium, magnesium, iron and the like carried by a water source is extremely low, the ions are not pollution ions and only cause the formation of scale on the surface of a cathode electrode to a certain degree, and the effect of the cosmetic water is not obviously influenced, but potassium ions in a potassium-containing solution passing through an intermediate chamber pass through the cation exchange membrane, so that the cathode obtains weak alkaline ion water rich in potassium ions, and the influence of the potassium ions rich in the water on a body is not determined in the prior art and is not preferred.
When the exchange membrane II is an anion exchange membrane, the preferred technical scheme is that calcium ions, magnesium ions, iron ions and other ions in a water source and potassium ions in the middle chamber cannot pass through the anion exchange membrane, namely only electrolytic reduction of water occurs at a cathode to obtain alkaline reduced water, the cosmetic reduced water is not obviously limited in use and can be used internally or externally, and the exchange membrane II in the preferred technical scheme of the invention is an anion exchange membrane.
The pH value range of the invention is 8.5-9.5, the range is the beauty water range approved by the prior art, if the water electrolysis process of the invention is used for disinfectant water, the disinfectant water with the pH value of about 12.5 can be obtained, and the disinfectant water has no corrosion and can be used for washing vegetables and fruits and scrubbing human bodies.
The scheme of the invention has the following beneficial effects:
(1) the foamed nickel structure of the cathode for the alkalescent beautifying water endows the electrode with a macroporous structure, and is beneficial to contact with electrolyte.
(2) The nickel-aluminum-lanthanum ternary alloy structure is effectively formed through ionic liquid electroplating.
(3) Aluminum is effectively removed through alkaline corrosion to obtain a micro-mesoporous structure with a specific surface area of 20-23g/m2。
(4) The influence of halogen is effectively avoided when the aluminum material is effectively removed through the alkali corrosion.
(5) Through sulfur doping and lanthanum modification of the nickel material, the adsorption and dissociation performance of hydrogen ions is optimal, and higher hydrogen evolution activity is obtained.
(6) The oxidation-reduction potential of the beauty water is negative, and the pH value is maintained to be more than or equal to 60 days under the condition of normal temperature and normal pressure sealing condition for more than or equal to 8.5-9.5.
Drawings
Fig. 1 is a schematic view of the beauty water of the present invention.
Detailed Description
Example 1
A preparation method of a cathode for alkalescent beautifying water comprises the following preparation methods:
(1) nickel salt, aluminum salt, lanthanum salt, alkyl imidazole halide and ethane dithiol are taken as electrolyte molten salt, a copper net or a nickel net is taken as a cathode, a high-purity aluminum plate is taken as an anode, and the electrodeposition condition is 5A/dm2Temperature 40oC, the time is 30min, and the atmosphere is inert gas.
(2) And (3) putting the electrode subjected to the electrodeposition in the step (2) into an alkaline solution for corrosion treatment: alkaline solution is 30wt.% NaOH, volume ratio is 4: 1, deionized water and ethanol mixed solution, ultrasonic stirring is carried out at 30kHz and the temperature is 30 DEGoC。
(3) Placing the cathode subjected to the heat treatment in the step (2) under the condition of inert gasHeat treatment at 450 deg.C for 12 hroC。
(4) Washing and drying: washing with deionized water, and air-drying with cold air.
The nickel salt is nickel sulfate or nickel nitrate, and the concentration is 150 g/L.
The aluminum salt is aluminum chloride or aluminum nitrate and is 20 g/L.
The lanthanum salt is lanthanum chloride or lanthanum nitrate and is 15 g/L.
Ethanedithiol 3 g/L.
The nickel net or the copper net is pretreated, the pretreatment comprises heat treatment, degreasing, alkali washing and acid washing, and the heat treatment is 200oC，N2Gas protection, 20min, the degreasing fluid is acetone, and the alkali washing is 30oAnd C, 3min, 15wt.% NaOH, 3min, and 5wt.% HCl for acid washing, 3min, wherein deionized water is used for washing after degreasing, alkali washing and acid washing.
Example 2
A preparation method of a cathode for alkalescent beautifying water comprises the following preparation methods:
(1) nickel salt, aluminum salt, lanthanum salt, alkyl imidazole halide and ethane dithiol are taken as electrolyte molten salt, a copper net or a nickel net is taken as a cathode, a high-purity aluminum plate is taken as an anode, and the electrodeposition condition is 10A/dm2Temperature 45 ℃ ofoC, time 2h, inert gas atmosphere.
(2) And (3) putting the electrode subjected to the electrodeposition in the step (2) into an alkaline solution for corrosion treatment: the alkaline solution was 32.5wt.% NaOH, in a volume ratio of 4: 1.25 mixture of deionized water and ethanol with ultrasonic stirring at 35kHz and 33 deg.CoC。
(3) The cathode subjected to the heat treatment in the step (2) is subjected to heat treatment under the inert gas condition, the time for the heat treatment is 18 hours, and the temperature is 600oC。
(4) Washing and drying: washing with deionized water, and air-drying with cold air.
The nickel salt is nickel sulfate or nickel nitrate, 175 g/L.
The aluminum salt is aluminum chloride or aluminum nitrate and is 25 g/L.
The lanthanum salt is lanthanum chloride or lanthanum nitrate and is 17.5 g/L.
Ethanedithiol 4 g/L.
The nickel net or the copper net is pretreated, the pretreatment comprises heat treatment, degreasing, alkali washing and acid washing, and the heat treatment is 225oC，N2Gas protection, 40min, the degreasing fluid is acetone, and the alkali washing is 30oC, 4min, 17.5wt.% NaOH, 4min, and acid washing to 10wt.% HCl, 4min, wherein deionized water is used for washing after degreasing, alkali washing and acid washing, and the obtained sample is named as S-2.
Example 3
A preparation method of a cathode for alkalescent beautifying water comprises the following preparation methods:
(1) nickel salt, aluminum salt, lanthanum salt, alkyl imidazole halide and ethane dithiol are taken as electrolyte molten salt, a copper net or a nickel net is taken as a cathode, a high-purity aluminum plate is taken as an anode, and the electrodeposition condition is 15A/dm2Temperature 50 ofoC, time 4h, inert gas atmosphere.
(2) And (3) putting the electrode subjected to the electrodeposition in the step (2) into an alkaline solution for corrosion treatment: the alkaline solution is 35wt.% NaOH, and the volume ratio is 4: 1.5 mixture of deionized water and ethanol, with ultrasonic stirring at 40kHz and 35 deg.CoC。
(3) The cathode subjected to the heat treatment in the step (2) is subjected to heat treatment under the inert gas condition, the heat treatment time is 24 hours, and the temperature is 650oC。
(4) Washing and drying: washing with deionized water, and air-drying with cold air.
The nickel salt is nickel sulfate or nickel nitrate, and the concentration is 200 g/L.
The aluminum salt is aluminum chloride or aluminum nitrate and is 30 g/L.
The lanthanum salt is lanthanum chloride or lanthanum nitrate, and the concentration is 20 g/L.
3-5g/L of ethanedithiol.
The nickel net or the copper net is pretreated, the pretreatment comprises heat treatment, degreasing, alkali washing and acid washing, and the heat treatment is 250oC，N2Gas protection, 60min, the degreasing fluid is acetone, and the alkali washing is 30oC, 5min, 20wt.% NaOH, 5min, acid cleaning15wt.% HCl for 5min, and deionized water washing is set after degreasing, alkali washing and acid washing.
Comparative example 1
A preparation method of a cathode for alkalescent beautifying water comprises the following preparation methods:
(1) taking nickel salt, aluminum salt, lanthanum salt and alkyl imidazole halide as electrolyte molten salt, taking a copper net or a nickel net as a cathode and taking a high-purity aluminum plate as an anode, and performing electrodeposition under the condition of 10A/dm2Temperature 45 ℃ ofoC, time 2h, inert gas atmosphere.
(2) And (3) putting the electrode subjected to the electrodeposition in the step (2) into an alkaline solution for corrosion treatment: the alkaline solution was 32.5wt.% NaOH, in a volume ratio of 4: 1.25 mixture of deionized water and ethanol with ultrasonic stirring at 35kHz and 33 deg.CoC。
(3) The cathode subjected to the heat treatment in the step (2) is subjected to heat treatment under the inert gas condition, the time for the heat treatment is 18 hours, and the temperature is 600oC。
(4) Washing and drying: washing with deionized water, and air-drying with cold air.
The nickel salt is nickel sulfate or nickel nitrate, 175 g/L.
The aluminum salt is aluminum chloride or aluminum nitrate and is 25 g/L.
The lanthanum salt is lanthanum chloride or lanthanum nitrate and is 17.5 g/L.
The nickel net or the copper net is pretreated, the pretreatment comprises heat treatment, degreasing, alkali washing and acid washing, and the heat treatment is 225oC，N2Gas protection, 40min, the degreasing fluid is acetone, and the alkali washing is 30oC, 4min, 17.5wt.% NaOH, 4min, acid wash to 10wt.% HCl, 4min, and deionized water washing after degreasing, alkali wash, and acid wash, wherein the obtained sample is named as D-2.
As shown in the above table, the main element in S-2 is S-La-Ni, the hydrogen evolution potential is-0.32V, and the exchange current density is 37.2 mA/cm2Tafel slope 67.3 mV/dec, for a continuous 24h stability test, a shift of 12mV in the hydrogen evolution potential occurs.
If the S element is not doped, such as the main element of D-1 is La-Ni, the hydrogen evolution potential is-0.63V, and the exchange current density is 19.3 mA/cm2The Tafel slope was 119.2 mV/dec, for which a 24h continuous stability test, a 23mV shift in hydrogen evolution potential occurred.
Cosmetic water preparation was carried out using the electrode obtained in example 2 to obtain water source treatment processes of examples 4-6 and examples 4-6
(a) A special fiber layer: the characteristic fiber layer is used for filtering large-particle impurities such as rust, dust or moss with the particle size of more than 5 mu m.
(b) And (3) treating granular activated carbon: used for removing impurities such as chlorine, VOC, heavy metals, pesticides, peculiar smell and the like.
(c) And (3) calcium sulfite treatment: used for removing chlorine gas, heavy metals and the like remained in water.
(d) Silver-plated particle activated carbon treatment: can be used for sterilizing and inhibiting growth of pathogenic bacteria.
(e) 0.1 micrometer ultra-fine filtering membrane for filtering substances of 0.1 micrometer or more, including pathogenic bacteria and cyst.
Example 4
A preparation method of beauty water comprises the following steps:
(1) and (4) carrying out purification pretreatment on the water source to obtain purified water.
(2) The method comprises the steps of taking a sulfur-doped porous Ni-La/foam metal material as a cathode, taking a platinized copper electrode as an anode, dividing an electrolytic tank into an anode chamber, a middle chamber and a cathode chamber by using an anion exchange membrane I and an anion exchange membrane II, wherein the anion exchange membrane I is close to the anode, the anion exchange membrane II is close to the cathode, introducing a mixed solution of potassium carbonate, potassium bicarbonate and purified water into the middle chamber, purifying the water into the cathode chamber and the anode chamber, switching on a power supply to electrolyze, wherein the concentration of the potassium carbonate is 0.5M, and the concentration of the potassium bicarbonate is 0.75M.
(3) After electrolysis for a period of time, measuring the pH value of the catholyte to be 8.5 +/-0.3 by using a pH value on-line monitor, and collecting the catholyte after reaching a specified range to obtain the beauty water.
The electrode voltage is 10V, and the electrolysis time is monitored on line according to pH.
Example 5
A preparation method of beauty water comprises the following steps:
(1) and (4) carrying out purification pretreatment on the water source to obtain purified water.
(2) The method comprises the steps of taking a sulfur-doped porous Ni-La/foam metal material as a cathode, taking a platinized copper electrode as an anode, dividing an electrolytic tank into an anode chamber, a middle chamber and a cathode chamber by using an anion exchange membrane I and an anion exchange membrane II, wherein the anion exchange membrane I is close to the anode, the anion exchange membrane II is close to the cathode, introducing a mixed solution of potassium carbonate, potassium bicarbonate and purified water into the middle chamber, purifying the water into the cathode chamber and the anode chamber, switching on a power supply to electrolyze, wherein the concentration of the potassium carbonate is 0.55M, and the concentration of the potassium bicarbonate is 0.8M.
(3) After electrolysis for a period of time, measuring the pH value of the catholyte to be 9.0 +/-0.3 by using a pH value on-line monitor, and collecting the catholyte after reaching a specified range to obtain the beauty water.
The electrode voltage is 17.5V, and the electrolysis time is monitored according to pH value on line.
Example 6
A preparation method of beauty water comprises the following steps:
(1) and (4) carrying out purification pretreatment on the water source to obtain purified water.
(2) The method comprises the steps of taking a sulfur-doped porous Ni-La/foam metal material as a cathode, taking a platinized copper electrode as an anode, dividing an electrolytic tank into an anode chamber, a middle chamber and a cathode chamber by using an anion exchange membrane I and an anion exchange membrane II, wherein the anion exchange membrane I is close to the anode, the anion exchange membrane II is close to the cathode, introducing a mixed solution of potassium carbonate, potassium bicarbonate and purified water into the middle chamber, purifying the water into the cathode chamber and the anode chamber, switching on a power supply to electrolyze, wherein the concentration of the potassium carbonate is 0.75M, and the concentration of the potassium bicarbonate is 1.25M.
(3) After electrolysis for a period of time, measuring the pH value of the catholyte to be 9.5 +/-0.3 by using a pH value on-line monitor, and collecting the catholyte after reaching a specified range to obtain the beauty water.
The electrode voltage is 25V, and the electrolysis time is monitored according to pH value on line.
The test was carried out with the beauty water obtained in example 5.
From the above table, it is evident that the mineral content in the beauty water obtained by the method or the cosmetic water of the present invention is significantly increased and is rich in trace elements. The electrolysis was carried out in example 5 for 3 to 4min to obtain a pH of 9.25 and an ORP of-98 mV to-119 mV.
Example 4 the voltage was 10V, the pH was 8.62, and the ORP was-27 mV to-35 mV.
Example 5 the voltage was 17.5V, the pH was 9.25, and the ORP was-58 mV to-69 mV.
Example 6 has a voltage of 25V and a pH of 9.46 and-98 mV to-119 mV.
The positive OPR transition time of the examples 4-5 is 18-32h, and the ORP value is more negative along with the increase of the voltage, mainly because the increase of the voltage can obviously increase the current density and the catalytic speed at the cathode is faster.
The pH stability test was performed for example 2: the initial pH is 9.25, the pH is 9.21 on day 10, the pH is 9.1 on day 20, the pH is 8.91 on day 30, the pH is 8.75 on day 40, the pH is 8.76 on day 50, and the pH is 8.71 on day 60, and the pH is reduced by 0.5 within 60 days to be within an acceptable range, namely the pH stabilization time of the beauty water is more than or equal to 60 days.
Finally, it should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The alkaline cosmetic water is characterized in that the alkaline cosmetic water is obtained by electrolyzing purified water by taking a porous Ni-La/foam metal material as a cathode, the cosmetic water maintains pH of 8.5-9.5 for more than or equal to 60 days under the sealing condition of normal temperature and pressure, the ORP value of the cosmetic water is a negative value, the ORP range is-27 mV to-120 mV, the ORP is changed to positive within the range of 18-32h, and the preparation process of the sulfur-doped porous Ni-La/foam metal cathode comprises the following steps:
(a) nickel salt, aluminum salt, lanthanum salt, alkyl imidazole halide and ethane dithiol are taken as electrolyte molten salt, a copper net or a nickel net is taken as a cathode, a high-purity aluminum plate is taken as an anode, and the electrodeposition condition is 5-15A/dm2At a temperature of 40-50 deg.CoC, the time is 30min-4h, and the atmosphere is inert gas;
(b) placing the electrode subjected to the electrodeposition in the step (2) in an alkaline solution for corrosion treatment;
(c) placing the cathode subjected to the heat treatment in the step (2) under the inert gas condition for heat treatment;
(d) and washing and drying to obtain the cathode.
2. The alkaline cosmetic water according to claim 1, wherein the electrolysis process comprises:
(1) performing purification pretreatment on a water source to obtain purified water;
(2) taking a sulfur-doped porous Ni-La/foam metal material as a cathode, taking platinized copper as an anode, and dividing the electrolytic tank into an anode chamber, a middle chamber and a cathode chamber by using an anion exchange membrane I and an anion exchange membrane II, wherein the anion exchange membrane I is close to the anode, the anion exchange membrane II is close to the cathode, a mixed solution of potassium carbonate, potassium bicarbonate and purified water is introduced into the middle chamber, the purified water is introduced into the cathode chamber and the anode chamber, and the power supply is switched on for electrolysis;
(3) after electrolysis for a period of time, measuring the pH value of the catholyte by using a pH value on-line monitor, and collecting the catholyte after reaching a specified range to obtain the beauty water.
3. The alkaline cosmetic water according to claim 1, wherein the nickel salt is nickel sulfate or nickel nitrate, the aluminum salt is aluminum chloride or aluminum nitrate, the lanthanum salt is lanthanum chloride or lanthanum nitrate, the alkylimidazole halide is one of EMIC, BMIC or MPIC, the nickel salt content is: 150-200 g/L; the content of the aluminum salt is 20-30g/L, the content of the lanthanum salt is 15-20g/L, and the content of the ethane dithiol is 3-5 g/L.
4. The alkaline cosmetic water as claimed in claim 1, wherein the nickel mesh or copper mesh is pretreated, the pretreatment comprises heat treatment, degreasing, alkali washing and acid washing, and the heat treatment is 200-oC，N2Gas protection, 20-60min, degreasing liquid is acetone, and alkali washing is 30oC3-5min, 15-20wt.% NaOH, 3-5min, and 5-15wt.% HCl by acid washing for 3-5min, wherein deionized water is used for washing after degreasing, alkali washing and acid washing.
5. The alkaline cosmetic water according to claim 1, wherein the alkaline solution in the step (b) is 30-35wt.% NaOH, and the volume ratio is 4: (1-1.5) deionized water and ethanol, and ultrasonic stirring at 30-40kHz, power of 200-300W and temperature of 30-35 kHz during the corrosion processoC, the time for the heat treatment in the step (C) is 12-24h, and the temperature is 450-oC。
6. The alkaline water for beauty treatment according to claim 2, wherein the concentration of the potassium carbonate in the mixture of the potassium carbonate, the potassium bicarbonate and the purified water is 0.5 to 0.75M.
7. The alkaline cosmetic water of claim 6, wherein the concentration of potassium bicarbonate is 0.75-1.25M.
8. The alkaline cosmetic water according to claim 2, wherein the power supply voltage is 10-25V.
9. The alkaline cosmetic water according to claim 2, wherein the electrolysis time is 1-10 min.
10. An alkaline cosmetic water according to claim 2, wherein the cosmetic water in the cathode chamber is treated at a yield of 15 to 17L/h.
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| ***: "关于规范涉及生活饮用水卫生安全产品生产销售的公告（***公告2005年第10号）", pages 118, Retrieved from the Internet <URL:关于规范涉及生活饮用水卫生安全产品生产销售的公告（***公告2005年第10号） (nhc.gov.cn)> * |
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