CN114917908A - Preparation method of supported modified activated carbon ozone catalyst - Google Patents
Preparation method of supported modified activated carbon ozone catalyst Download PDFInfo
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- CN114917908A CN114917908A CN202210418855.0A CN202210418855A CN114917908A CN 114917908 A CN114917908 A CN 114917908A CN 202210418855 A CN202210418855 A CN 202210418855A CN 114917908 A CN114917908 A CN 114917908A
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- activated carbon
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- ozone catalyst
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000003054 catalyst Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 238000010992 reflux Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000012670 alkaline solution Substances 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 239000003929 acidic solution Substances 0.000 claims abstract description 7
- 238000000967 suction filtration Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 5
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 claims abstract description 5
- 235000011180 diphosphates Nutrition 0.000 claims abstract description 5
- 239000011261 inert gas Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000002791 soaking Methods 0.000 claims abstract description 5
- 150000003839 salts Chemical class 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 229940048084 pyrophosphate Drugs 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 3
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 3
- 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 3
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 3
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 3
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 claims description 3
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 2
- 244000060011 Cocos nucifera Species 0.000 claims description 2
- 240000007049 Juglans regia Species 0.000 claims description 2
- 235000009496 Juglans regia Nutrition 0.000 claims description 2
- 235000009827 Prunus armeniaca Nutrition 0.000 claims description 2
- 244000018633 Prunus armeniaca Species 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- XZTWHWHGBBCSMX-UHFFFAOYSA-J dimagnesium;phosphonato phosphate Chemical compound [Mg+2].[Mg+2].[O-]P([O-])(=O)OP([O-])([O-])=O XZTWHWHGBBCSMX-UHFFFAOYSA-J 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 235000020234 walnut Nutrition 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 14
- 239000010842 industrial wastewater Substances 0.000 abstract description 7
- 230000003197 catalytic effect Effects 0.000 abstract description 6
- 230000000593 degrading effect Effects 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The embodiment of the invention provides a preparation method of a supported modified activated carbon ozone catalyst, belonging to the technical field of catalyst preparation. The preparation method comprises the following steps: preparing acidic solution modified activated carbon with a certain concentration, electromagnetically stirring and refluxing, and then cleaning the activated carbon to a certain pH value by using deionized water to obtain first modified activated carbon; preparing an alkaline solution with a certain concentration, stirring and refluxing the first modified activated carbon, cleaning the first modified activated carbon to a certain pH value by using deionized water, and drying the first modified activated carbon at a certain temperature to a constant weight to obtain second modified activated carbon; preparing a composite metal salt and pyrophosphate solution with certain concentration and volume, soaking the second modified activated carbon in the solution in equal volume for a certain time, carrying out suction filtration and reciprocation for 3 times, drying the second modified activated carbon at a certain temperature to constant weight, and roasting the second modified activated carbon in a muffle furnace under the protection of inert gas for a certain time. The invention can effectively improve the catalytic activity of the ozone catalyst, thereby improving the efficiency of degrading the organic industrial wastewater.
Description
Technical Field
The invention relates to the technical field of catalyst preparation, in particular to a preparation method of a supported modified activated carbon ozone catalyst.
Background
With the development of national economy, the requirements of people on the diversification of clothes and textile colors are improved, the organic dye wastewater discharged by the printing and dyeing industries such as clothes, textile and the like is increased year by year, and the water pollution treatment system in China faces severe examination. At present, the comprehensive wastewater has large water quantity, high pollutant concentration and large water quality fluctuation, organic matters mainly comprise dye molecules which mainly comprise aromatic hydrocarbon and heterocyclic compounds and have chromogenic groups and polar groups, and part of the wastewater also comprises toxic and harmful substances, so the organic wastewater is recognized at home and abroad as organic industrial wastewater which is difficult to degrade.
In the organic industrial wastewater treatment process, the oxidation ability of ozone is generally utilized to decompose and disinfect organic substances. However, ozone itself has a weak oxidizing ability, and therefore, organic industrial wastewater cannot be efficiently degraded, and maintenance costs are high.
Disclosure of Invention
The embodiment of the invention aims to provide a preparation method of a supported modified activated carbon ozone catalyst, which is simple and can effectively improve the catalytic activity of the ozone catalyst, so that the efficiency of degrading organic industrial wastewater is improved.
The preparation method of the supported modified activated carbon ozone catalyst provided by the embodiment of the invention comprises the following steps:
s10: preparing acidic solution modified activated carbon with a certain concentration, electromagnetically stirring, refluxing, and then washing to a certain pH value by using deionized water to obtain first modified activated carbon;
s20: preparing an alkaline solution with a certain concentration, stirring and refluxing the first modified activated carbon again, cleaning the first modified activated carbon to a certain pH value by using deionized water, taking out the first modified activated carbon, and drying the first modified activated carbon at a certain temperature to constant weight to obtain second modified activated carbon;
s30: preparing a composite metal salt and pyrophosphate solution with certain concentration and volume, soaking the second modified activated carbon for a certain time in an equal volume, then carrying out suction filtration and reciprocating for 3 times, drying at a certain temperature to constant weight, and roasting in a muffle furnace under the protection of inert gas for a certain time.
Further, the modified activated carbon is one or more of coconut shells, walnut shells and apricot kernels, and the fineness after grinding is 120-300 meshes.
Further, the acid solution is one or more of nitric acid, hydrochloric acid and phosphoric acid solution, the concentration of the acid solution is 2-5%, and the cleaning pH is 5-7.
Further, the alkaline solution is one or more of sodium hydroxide, potassium hydroxide, sodium carbonate and ammonia water solution, the concentration of the alkaline solution is 5-10%, and the cleaning pH is 7-8.
Further, the composite metal salt solution is one or more of copper nitrate, nickel nitrate, cobalt nitrate, ferric nitrate and zinc chloride, and the preparation concentration is 0.1-1 mol/L.
Further, the pyrophosphate is one or more of potassium pyrophosphate, sodium pyrophosphate and magnesium pyrophosphate, and the concentration is 0.1-0.5 mol/L.
Further, the second activated carbon is impregnated for 0.5 to 2 hours, and the drying temperature is 80 to 140 ℃.
Furthermore, the temperature for roasting by inert gas protection is 300-600 ℃, and the roasting time is 2-6 hours.
The invention has the beneficial effects that: according to the preparation method of the supported modified activated carbon ozone catalyst provided by the embodiment of the invention, the modified activated carbon is stirred and cleaned by respectively preparing the acidic solution and the alkaline solution, then is subjected to isometric impregnation for a certain time, and then is subjected to suction filtration, drying and roasting, so that the characteristic of excellent adsorption performance of the activated carbon is fully utilized, the adsorption catalytic performance of the activated carbon is obviously improved by adopting processes such as active component impregnation and the like, the ozone oxidation performance can be effectively enhanced, the utilization efficiency of ozone is improved, and the efficiency of degrading organic industrial wastewater is improved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.
The terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1
The preparation method of the supported modified activated carbon ozone catalyst provided by the embodiment of the invention mainly comprises the following steps:
step S10: firstly, preparing a 5% nitric acid solution for modifying the activated carbon, electromagnetically stirring, refluxing, and then washing with deionized water until the pH value is 6.5 to obtain first modified activated carbon;
step S20: then preparing a 10% potassium hydroxide solution, stirring and refluxing the first modified activated carbon again, washing the first modified activated carbon with deionized water until the pH value is 7.2, taking out the first modified activated carbon, and drying the first modified activated carbon at 110 ℃ to constant weight to obtain second modified activated carbon;
step S30: preparing 0.5mol/L and equal volume of cobalt nitrate and nickel nitrate mixed solution according to the proportion of 1:1, adding 0.5mol/L potassium pyrophosphate, taking the second modified activated carbon, impregnating the second modified activated carbon for 30min in equal volume, then carrying out suction filtration, reciprocating for 3 times, and drying at 90 ℃ to constant weight; by the use of N 2 The mixture was protected and calcined in a muffle furnace at 500 ℃ for 2 hours.
Example 2
The preparation method of the supported modified activated carbon ozone catalyst provided by the embodiment of the invention mainly comprises the following steps:
step S10: firstly, preparing a nitric acid solution with the concentration of 3% for modifying the activated carbon, electromagnetically stirring, refluxing, and then washing with deionized water until the pH value is 6.9 to obtain first modified activated carbon;
step S20: then preparing a 7% potassium hydroxide solution, stirring and refluxing the first modified activated carbon again, washing the first modified activated carbon with deionized water until the pH value is 7.5, taking out the first modified activated carbon, and drying the first modified activated carbon at 120 ℃ to constant weight to obtain second modified activated carbon;
step S30: preparing 0.3mol/L of equal-volume mixed solution of ferric nitrate and cupric nitrate according to the proportion of 2:1, adding sodium pyrophosphate with the corresponding volume of 0.3mol/L, taking the second modified activated carbon, soaking the second modified activated carbon for 60min in equal volume, then carrying out suction filtration, repeating for 3 times, and drying at 100 ℃ to constant weight; by using N 2 The mixture was protected and calcined in a muffle furnace at 450 ℃ for 3 hours.
Evaluation example:
the deionized water for each treatment is 500 mL, and the using amount of the catalyst is 30 g. Before the start of the evaluation test, ozone was pretreated in advance. And (3) placing the printing and dyeing wastewater in a reaction device, and pumping ozone to the bottom left of the reactor, wherein the mass concentration of the ozone is 10 mg/L.
The ozone catalytic oxidation test was conducted 3 times, and the removal rate of COD was used as an evaluation of the catalyst activity, and COD was measured by a potassium dichromate method and the ozone concentration was measured by an iodometric method. The test results are shown in the following table:
as can be seen from the table above, the ozone catalyst prepared by the preparation method of the supported modified activated carbon ozone catalyst provided by the embodiment of the invention has a good catalytic effect.
In summary, according to the preparation method of the supported modified activated carbon ozone catalyst provided by the embodiment of the invention, the modified activated carbon is stirred and cleaned by respectively preparing the acidic solution and the alkaline solution, then is soaked for a certain time in an equal volume, and then is subjected to suction filtration, drying and roasting, so that the characteristic of excellent adsorption performance of the activated carbon is fully utilized, the adsorption catalytic performance of the activated carbon is obviously improved by adopting processes such as active component soaking, the ozone oxidation performance can be effectively enhanced, the utilization efficiency of ozone is improved, and the efficiency of degrading organic industrial wastewater is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A preparation method of a supported modified activated carbon ozone catalyst is characterized by comprising the following steps:
s10: preparing acidic solution modified activated carbon with a certain concentration, electromagnetically stirring, refluxing, and then washing to a certain pH value by using deionized water to obtain first modified activated carbon;
s20: preparing an alkaline solution with a certain concentration, stirring and refluxing the first modified activated carbon again, cleaning the first modified activated carbon to a certain pH value by using deionized water, taking out the first modified activated carbon, and drying the first modified activated carbon at a certain temperature to constant weight to obtain second modified activated carbon;
s30: preparing a composite metal salt and pyrophosphate solution with certain concentration and volume, soaking the second modified activated carbon for a certain time in an equal volume, then carrying out suction filtration and reciprocating for 3 times, drying at a certain temperature to constant weight, and roasting in a muffle furnace under the protection of inert gas for a certain time.
2. The preparation method of the supported modified activated carbon ozone catalyst as claimed in claim 1, wherein the modified activated carbon is one or more of coconut shell, walnut shell and apricot kernel, and the fineness after grinding is 120-300 meshes.
3. The method for preparing the supported modified activated carbon ozone catalyst according to claim 1, wherein the acidic solution is one or more of nitric acid, hydrochloric acid and phosphoric acid, the concentration of the acidic solution is 2-5%, and the cleaning pH is 5-7.
4. The method for preparing the supported modified activated carbon ozone catalyst according to claim 1, wherein the alkaline solution is one or more of sodium hydroxide, potassium hydroxide, sodium carbonate and ammonia water solution, the concentration of the alkaline solution is 5-10%, and the cleaning pH is 7-8.
5. The preparation method of the supported modified activated carbon ozone catalyst according to claim 1, wherein the composite metal salt solution is one or more of copper nitrate, nickel nitrate, cobalt nitrate, ferric nitrate and zinc chloride, and the preparation concentration is 0.1-1 mol/L.
6. The method for preparing the supported modified activated carbon ozone catalyst according to claim 1, wherein the pyrophosphate is one or more of potassium pyrophosphate, sodium pyrophosphate and magnesium pyrophosphate, and the concentration is 0.1-0.5 mol/L.
7. The method for preparing the supported modified activated carbon ozone catalyst as claimed in claim 1, wherein the second activated carbon is impregnated for 0.5 to 2 hours and dried at 80 to 140 ℃.
8. The method for preparing the supported modified activated carbon ozone catalyst as claimed in claim 1, wherein the temperature for calcination under inert gas protection is 300-600 ℃, and the calcination time is 2-6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210418855.0A CN114917908A (en) | 2022-04-21 | 2022-04-21 | Preparation method of supported modified activated carbon ozone catalyst |
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| CN202210418855.0A CN114917908A (en) | 2022-04-21 | 2022-04-21 | Preparation method of supported modified activated carbon ozone catalyst |
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| CN114917908A true CN114917908A (en) | 2022-08-19 |
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| CN202210418855.0A Pending CN114917908A (en) | 2022-04-21 | 2022-04-21 | Preparation method of supported modified activated carbon ozone catalyst |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115721570A (en) * | 2022-09-29 | 2023-03-03 | 深圳爱尔创口腔技术有限公司 | Whitening toothpaste |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091619A (en) * | 2010-11-23 | 2011-06-15 | 广东工业大学 | Preparation method for ozone catalytic oxidation catalyst and device using catalyst |
| CN102897894A (en) * | 2012-11-13 | 2013-01-30 | 天津市联合环保工程设计有限公司 | Combined unit type equipment for treating industrial wastewater by ozone catalyzing method |
| CN104646020A (en) * | 2013-11-18 | 2015-05-27 | 北京天灏柯润环境科技有限公司 | Ozone catalyst and preparation method |
| CN106000380A (en) * | 2016-05-19 | 2016-10-12 | 天津大拇指环境工程有限公司 | Activated carbon-loaded nano-zinc oxide ozonation catalyst and preparation and use thereof |
| CN110052268A (en) * | 2019-05-22 | 2019-07-26 | 四川恒泰环境技术有限责任公司 | A kind of ozone catalytic oxidation catalyst and preparation method thereof |
-
2022
- 2022-04-21 CN CN202210418855.0A patent/CN114917908A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091619A (en) * | 2010-11-23 | 2011-06-15 | 广东工业大学 | Preparation method for ozone catalytic oxidation catalyst and device using catalyst |
| CN102897894A (en) * | 2012-11-13 | 2013-01-30 | 天津市联合环保工程设计有限公司 | Combined unit type equipment for treating industrial wastewater by ozone catalyzing method |
| CN104646020A (en) * | 2013-11-18 | 2015-05-27 | 北京天灏柯润环境科技有限公司 | Ozone catalyst and preparation method |
| CN106000380A (en) * | 2016-05-19 | 2016-10-12 | 天津大拇指环境工程有限公司 | Activated carbon-loaded nano-zinc oxide ozonation catalyst and preparation and use thereof |
| CN110052268A (en) * | 2019-05-22 | 2019-07-26 | 四川恒泰环境技术有限责任公司 | A kind of ozone catalytic oxidation catalyst and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| YUNLONG YANG ET AL., HETEROGENEOUS CATALYTIC OZONATION OF PHENOL BY A NOVEL BINARY CATALYST OF FE-NI/MAC，《CATALYSTS》 * |
| 张静等, 硝酸氧化和负载铁氧化物改性活性炭 催化臭氧化性能，《环境工程学报》 * |
| 王跃东等, 分子筛催化剂在染料降解中的 应用研究进展，《印染助剂》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115721570A (en) * | 2022-09-29 | 2023-03-03 | 深圳爱尔创口腔技术有限公司 | Whitening toothpaste |
| CN115721570B (en) * | 2022-09-29 | 2024-04-09 | 深圳爱尔创口腔技术有限公司 | Whitening toothpaste |
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