CN108295868A - AgCrO2-CuCr2O4Composite material, preparation method and application - Google Patents
AgCrO2-CuCr2O4Composite material, preparation method and application Download PDFInfo
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- CN108295868A CN108295868A CN201810183061.4A CN201810183061A CN108295868A CN 108295868 A CN108295868 A CN 108295868A CN 201810183061 A CN201810183061 A CN 201810183061A CN 108295868 A CN108295868 A CN 108295868A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 title description 12
- 229910002477 CuCr2O4 Inorganic materials 0.000 claims abstract description 84
- 239000002131 composite material Substances 0.000 claims abstract description 65
- 239000013049 sediment Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 16
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 238000001354 calcination Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 15
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical group [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 3
- SXTLQDJHRPXDSB-UHFFFAOYSA-N copper;dinitrate;trihydrate Chemical compound O.O.O.[Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O SXTLQDJHRPXDSB-UHFFFAOYSA-N 0.000 claims description 3
- 150000002823 nitrates Chemical class 0.000 claims description 3
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000011941 photocatalyst Substances 0.000 abstract description 2
- 229910002651 NO3 Inorganic materials 0.000 description 11
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 11
- 229940012189 methyl orange Drugs 0.000 description 11
- 230000001699 photocatalysis Effects 0.000 description 11
- 238000006731 degradation reaction Methods 0.000 description 8
- 235000019441 ethanol Nutrition 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 7
- 238000006555 catalytic reaction Methods 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 6
- 229910052724 xenon Inorganic materials 0.000 description 6
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 3
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- WIKQEUJFZPCFNJ-UHFFFAOYSA-N carbonic acid;silver Chemical compound [Ag].[Ag].OC(O)=O WIKQEUJFZPCFNJ-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- FULFYAFFAGNFJM-UHFFFAOYSA-N oxocopper;oxo(oxochromiooxy)chromium Chemical compound [Cu]=O.O=[Cr]O[Cr]=O FULFYAFFAGNFJM-UHFFFAOYSA-N 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- LKZMBDSASOBTPN-UHFFFAOYSA-L silver carbonate Substances [Ag].[O-]C([O-])=O LKZMBDSASOBTPN-UHFFFAOYSA-L 0.000 description 1
- KQTXIZHBFFWWFW-UHFFFAOYSA-L silver(I) carbonate Inorganic materials [Ag]OC(=O)O[Ag] KQTXIZHBFFWWFW-UHFFFAOYSA-L 0.000 description 1
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- 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
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8993—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with chromium, molybdenum or tungsten
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
A kind of AgCrO2‑CuCr2O4Composite material, preparation method and application are related to photocatalyst technology field.AgCrO provided by the invention2‑CuCr2O4The preparation method of composite material is：Soluble mantoquita, silver salt and soluble in water be uniformly mixed of chromic salts are obtained into mixed liquor；The pH of mixed liquor is adjusted to alkalinity, and reacts 40 80h at 170 220 DEG C and sediment is obtained by filtration；By sediment undergoes washing, drying, calcining.AgCrO provided in an embodiment of the present invention2‑CuCr2O4The preparation method of composite material has the advantages that simple for process, easy to operate.In addition the invention further relates to AgCrO prepared by above-mentioned preparation method2‑CuCr2O4Composite material and its application in photochemical catalyst.
Description
Technical field
The present invention relates to a kind of photocatalyst technology field, and more particularly to a kind of AgCrO2-CuCr2O4Composite material, its
Preparation method and application.
Background technology
With the continuous growth of the rapid development and world population of industry, environmental pollution is increasingly serious, and serious threat
To the survival and development of the mankind, processing environment pollution problem is very urgent.It is a kind of using solar energy photocatalytic degradation of contaminant
The most promising pollution treatment technology of energy-saving and environmental protection and non-secondary pollution.
Extensive concern and research of the silver-colored based semiconductor material due to receiving researcher with efficient photocatalytic activity,
Such as the Ag developed in recent years3PO4、Ag2CO3、Ag3VO4、Ag@AgCl、Ag2CrO4Equal materials, but during light-catalyzed reaction, silver
It is that silver ion in catalysis material is easily restored by light induced electron, causes the catalytic activity of material to continuously decrease, stability is poor, sternly
Weight influences the service life and photocatalysis performance that silver is catalysis material.How silver system catalysis material bloom to be kept to urge
Change it is active on the basis of improve its stability and be a problem to be solved.
Therefore, it is necessary to a kind of silver system catalysis materials with excellent photocatalysis performance and high stability.
Invention content
The purpose of the present invention is to provide a kind of AgCrO2-CuCr2O4Composite material is good and steady with photocatalysis performance
Qualitative strong advantage.
Another object of the present invention is to provide above-mentioned AgCrO2-CuCr2O4The preparation method of composite material, with work
The convenient advantage of skill simple operations.
Another object of the present invention is to provide above-mentioned AgCrO2-CuCr2O4Application of the composite material in photochemical catalyst.
The present invention solves its technical problem using following technical scheme to realize.
A kind of AgCrO2-CuCr2O4The preparation method of composite material comprising following steps：
Soluble mantoquita, silver salt and soluble in water be uniformly mixed of chromic salts are obtained into mixed liquor；
The pH of mixed liquor is adjusted to alkalinity, and reacts 40-80h at 170-220 DEG C and sediment is obtained by filtration；
By sediment undergoes washing, drying, calcining.
Further, in a preferred embodiment of the present invention, mantoquita is nitrate trihydrate copper；Preferably, silver salt is silver nitrate；More
Preferably, chromic salts is nine water chromic nitrates.
Further, in a preferred embodiment of the present invention, the molar ratio of mantoquita, silver salt and chromic salts is 1-2：2-4：5-8.5.
Further, in a preferred embodiment of the present invention, the pH of mixed liquor is adjusted to 9-12.
Further, in a preferred embodiment of the present invention, the sodium hydroxide solution that pH uses 4-6mol/L is adjusted.
Further, in a preferred embodiment of the present invention, cleaning is to be using acid, water and alcohol alternating cleaning sediment to pH
It is neutral.
Further, in a preferred embodiment of the present invention, drying is that the sediment after cleaning is handled 5- at 70-90 DEG C
8h。
Further, in a preferred embodiment of the present invention, calcining is to handle the sediment after drying at 400-700 DEG C
2-3h。
The present invention also provides a kind of AgCrO2-CuCr2O4Composite material is by above-mentioned AgCrO2-CuCr2O4It is compound
The preparation method of material is prepared.
The present invention also provides above-mentioned AgCrO2-CuCr2O4Application of the composite material in photochemical catalyst.
The AgCrO of the embodiment of the present invention2-CuCr2O4Composite material, preparation method and its advantageous effect of application are：This
The AgCrO that inventive embodiments provide2-CuCr2O4The preparation method of composite material is：Soluble mantoquita, silver salt and chromic salts is molten
Yu Shuizhong is uniformly mixed and obtains mixed liquor；The pH of mixed liquor is adjusted to alkalinity, and reacts 40-80h filterings at 170-220 DEG C
Obtain sediment；By sediment undergoes washing, drying, calcining.AgCrO provided in an embodiment of the present invention2-CuCr2O4The system of composite material
Preparation Method is simple for process, easy to operate.The invention further relates to AgCrO prepared by above-mentioned preparation method2-CuCr2O4Composite material,
It has very high photocatalytic activity and stability.The embodiment of the present invention, which additionally provides, addresses AgCrO2-CuCr2O4Composite wood
Expect the application in photochemical catalyst.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is AgCrO prepared by the embodiment of the present invention2-CuCr2O4Charge of composite material during light-catalyzed reaction
Separation principle；
Fig. 2 is AgCrO prepared by the embodiment of the present invention 12-CuCr2O4The XRD spectrum of composite material；
Fig. 3 is AgCrO prepared by the embodiment of the present invention 12-CuCr2O4Composite material and single AgCrO2, it is single
CuCr2O4Decline the expression activitiy of solution methyl orange in xenon lamp；
Fig. 4 is AgCrO prepared by the embodiment of the present invention 12-CuCr2O4Composite material and single AgCrO2In xenon lamp
The expression activitiy of lower iterative cycles degradation methyl orange.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Below to the AgCrO of the embodiment of the present invention2-CuCr2O4Composite material, preparation method and application carry out specifically
It is bright.
A kind of AgCrO2-CuCr2O4The preparation method of composite material comprising following steps：
Soluble mantoquita, silver salt and soluble in water be uniformly mixed of chromic salts are obtained into mixed liquor wherein, it is preferred that mantoquita is
Nitrate trihydrate copper；Preferably, silver salt is silver nitrate；Preferably, chromic salts is nine water chromic nitrates；Mole of mantoquita, silver salt and chromic salts
Than for 1-2：2-4：5-8.5；
Soluble mantoquita, silver salt and soluble in water be uniformly mixed of chromic salts are obtained into mixed liquor, by mixed liquor in 170-220
40-80h is reacted at DEG C, and sediment is obtained by filtration；Preferably, the pH of mixed liquor is adjusted to 9-12；It adjusts pH and uses 4-6mol/L
Sodium hydroxide solution.
By sediment undergoes washing, drying, calcining；It is neutrality that cleaning, which is using acid, water and alcohol alternating cleaning sediment to pH,；It is dry
Dry is that the sediment after cleaning is handled 5-8h at 70-90 DEG C；Calcining be by the sediment after drying at 400-700 DEG C
Manage 2-3h.
AgCrO provided in an embodiment of the present invention2-CuCr2O4The preparation method of composite material is by soluble mantoquita, silver
After mixing, insulation reaction, calcines after being then filtered, washed and obtains AgCrO under alkaline condition for salt and chromic salts2-CuCr2O4
Composite material, the preparation method it is simple for process, easy to operate, the preparation method is by by AgCrO2And CuCr2O4It is compound, energy
It is enough to improve AgCrO2Improve AgCrO while stability2And CuCr2O4Activity.
The present invention also provides a kind of AgCrO2-CuCr2O4Composite material is by above-mentioned AgCrO2-CuCr2O4It is compound
The preparation method of material is prepared, the AgCrO2-CuCr2O4The activity of composite material compares single AgCrO with stability2
And CuCr2O4Tool is significantly improved, and activity and stability-enhanced mechanism can be explained with Fig. 1, AgCrO2Forbidden band it is wide
Degree is 3.1eV, CuCr2O4Energy gap be 1.7eV, CuCr2O4Conduction band positions be less than AgCrO2Conduction band positions,
CuCr2O4Valence band location be higher than AgCrO2Valence band location, therefore under Xenon light shining, AgCrO2And CuCr2O4All it is excited
When generating light induced electron and hole, AgCrO2Light induced electron on conduction band can be transferred to CuCr2O4On conduction band, AgCrO2In valence band
Photohole can also be transferred to CuCr2O4Valence band on, thereby promoting the separation of photo-generate electron-hole pair, to effectively
Raising AgCrO2-CuCr2O4The photocatalytic activity of composite material, additionally due to AgCrO2The light induced electron of generation is transferred to
CuCr2O4On so that light induced electron does not restore silver ion, to improve AgCrO2Stability.
The present invention also provides above-mentioned AgCrO2-CuCr2O4Application of the composite material in photochemical catalyst.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
Present embodiments provide a kind of AgCrO2-CuCr2O4Composite material, preparation method are as follows：
S11, by 1.2gCu (NO3)3·3H2O、1.7gAgNO3With 8gCr (NO3)3·9H2O is dissolved in 70ml water, and constantly
Stirring 20min obtains mixed liquor.
S12, then with the NaOH of a concentration of 5mol/L the pH value of mixed liquor is adjusted to 10.5, then above-mentioned mixed liquor is turned
It moves on in water heating kettle, keeps the temperature 60h at 200 DEG C of temperature, wait for water heating kettle cooled and filtered, obtain sediment.
S13, the HCl solution, distilled water and ethyl alcohol of obtained sediment 0.1mol/L are alternately cleaned several times, until pH
Value is 7, and then the sediment after cleaning at 80 DEG C is dried to 6h, finally calcine the product obtained after drying at 600 DEG C
2h is to get to AgCrO2-CuCr2O4Composite material.
Embodiment 2
Present embodiments provide a kind of AgCrO2-CuCr2O4Composite material, preparation method are as follows：
S21, by 0.8gCu (NO3)3·3H2O、1.2gAgNO3With 6gCr (NO3)3·9H2O is dissolved in 60ml water, and constantly
Stirring 15min obtains mixed liquor.
S22, the pH value adjusting of mixed liquor is transferred to 9.5, then by above-mentioned mixed liquor with the NaOH of a concentration of 4mol/L
In water heating kettle, 80h is kept the temperature at 180 DEG C of temperature, water heating kettle cooled and filtered is waited for, obtains sediment.
S23, by the H of obtained sediment 0.1mol/L2SO4Solution, distilled water and ethyl alcohol replace cleaning several times, until
PH value is 7, and then the sediment after cleaning at 80 DEG C is dried to 6h, finally forge the product obtained after drying at 450 DEG C
3h is burnt to get to AgCrO2-CuCr2O4Composite material.
Embodiment 3
Present embodiments provide a kind of AgCrO2-CuCr2O4Composite material, preparation method are as follows：
S31, by 1gCu (NO3)3·3H2O、1.5gAgNO3With 7gCr (NO3)3·9H2O is dissolved in 70ml water, and is constantly stirred
It mixes 25min and obtains mixed liquor.
S32, the pH value adjusting of solution is transferred to hydro-thermal to 10, then by above-mentioned mixed liquor with the NaOH of a concentration of 5mol/L
In kettle, 50h is kept the temperature at 210 DEG C of temperature, water heating kettle cooled and filtered is waited for, obtains sediment.
S33, the HCl solution, distilled water and ethyl alcohol of obtained sediment 0.2mol/L are alternately cleaned several times, until pH
Value is 7, and then the sediment after cleaning at 75 DEG C is dried to 5.5h, finally forge the product obtained after drying at 500 DEG C
2.5h is burnt to get to AgCrO2-CuCr2O4Composite material.
Embodiment 4
Present embodiments provide a kind of AgCrO2-CuCr2O4Composite material, preparation method are as follows：
S41, by 1.3gCu (NO3)3·3H2O、1.8gAgNO3With 9gCr (NO3)3·9H2O is dissolved in 75ml water, and constantly
Stirring 25min obtains mixed liquor.
S42, the pH value adjusting of solution is transferred to hydro-thermal to 11, then by above-mentioned mixed liquor with the NaOH of a concentration of 6mol/L
In kettle, 40h is kept the temperature at 220 DEG C of temperature, water heating kettle cooled and filtered is waited for, obtains sediment.
S43, the HCl solution, distilled water and ethyl alcohol of obtained sediment 0.3mol/L are alternately cleaned several times, until pH
Value is 7, and then the sediment after cleaning at 85 DEG C is dried to 5h, finally calcine the product obtained after drying at 700 DEG C
2.5h is to get to AgCrO2-CuCr2O4Composite material.
Embodiment 5
Present embodiments provide a kind of AgCrO2-CuCr2O4Composite material, preparation method are as follows：
S51, by 1.5gCu (NO3)3·3H2O、2gAgNO3With 10gCr (NO3)3·9H2O is dissolved in 80ml water, and constantly
Stirring 30min obtains mixed liquor.
S52, the pH value adjusting of solution is transferred to hydro-thermal to 12, then by above-mentioned mixed liquor with the NaOH of a concentration of 6mol/L
In kettle, 65h is kept the temperature at 190 DEG C of temperature, water heating kettle cooled and filtered is waited for, obtains sediment.
S53, the HCl solution, distilled water and ethyl alcohol of obtained sediment 0.1mol/L are alternately cleaned several times, until pH
Value is 7, and then the sediment after cleaning at 80 DEG C is dried to 6h, finally calcine the product obtained after drying at 600 DEG C
2h is to get to AgCrO2-CuCr2O4Composite material.
Embodiment 6
Present embodiments provide a kind of AgCrO2-CuCr2O4Composite material, preparation method are as follows：
S61, by 1.2gCuCl2, 1.8gAgCl and 6gCr (NO3)3·9H2O is dissolved in 70ml water, and is stirred continuously 20min
Obtain mixed liquor.
S62, the pH value adjusting of solution is transferred to hydro-thermal to 10, then by above-mentioned mixed liquor with the NaOH of a concentration of 5mol/L
In kettle, 80h is kept the temperature at 200 DEG C of temperature, water heating kettle cooled and filtered is waited for, obtains sediment.
S63, the HCl solution, distilled water and ethyl alcohol of obtained sediment 0.1mol/L are alternately cleaned several times, until pH
Value is 7, and then the sediment after cleaning at 70 DEG C is dried to 8h, finally calcine the product obtained after drying at 500 DEG C
3h is to get to AgCrO2-CuCr2O4Composite material.
To AgCrO2、CuCr2O4And the AgCrO that the embodiment of the present invention 1 provides2-CuCr2O4Composite material is detected.
The AgCrO that the embodiment of the present invention 1 is prepared2-CuCr2O4Composite material carries out XRD detections, as a result such as Fig. 2 institutes
Show, as can be seen from Figure 2, the AgCrO2-CuCr2O4Occur the crystal phase structure of two kinds of substances in the XRD spectrum of composite material,
A kind of AgCrO corresponding to hexagonal phase2(JCPDS No 70-1703), another kind correspond to the CuCr of tetragonal phase2O4(JCPDS
No.34-0424), illustrate the AgCrO2-CuCr2O4There are AgCrO in composite material2And CuCr2O4Two kinds of substances.
AgCrO under xenon lamp is assessed and detected as simulating pollution object using methyl orange2、CuCr2O4It is prepared with embodiment 1
AgCrO2-CuCr2O4The activity for methyl orange of degrading, to judge the photocatalytic activity of three kinds of materials, the results are shown in Figure 3, figure
In, C0For the initial concentration of the methyl orange before degradation, C indicates the concentration of methyl orange after degradation.As can be seen from Figure 3, pass through
After the photocatalysis treatment of 40min, single AgCrO2Can degrade 82% methyl orange, single CuCr2O4Can degrade 38% first
Base orange, and AgCrO2-CuCr2O4Composite material can but degrade 92% methyl orange, it can be seen that, it is provided in an embodiment of the present invention
AgCrO2-CuCr2O4The photocatalytic activity of composite material is apparently higher than single AgCrO2Or CuCr2O4。
To compare stability of different product during light-catalyzed reaction, we use single AgCrO2And the present invention
The AgCrO that embodiment 1 provides2-CuCr2O4Composite material is degraded methyl orange repeatedly, and specific method is first to use catalyst in xenon lamp
It is lower that certain methyl orange degradation is complete, then the solution after degradation is poured out, then pour into new methyl orange solution, continues to use it
Preceding catalyst degradation, repeatedly, the active size for rear catalyst of relatively repeatedly degrading repeatedly, the results are shown in Figure 4, Fig. 4
It is AgCrO under xenon lamp2With AgCrO provided in an embodiment of the present invention2-CuCr2O4Composite material recycles first of degrading repeatedly by 4 times
Expression activitiy after base orange.Figure 4, it can be seen that after 4 cycles repeatedly degradation process, single AgCrO24th is followed
Ring can only degrade 69% methyl orange, and AgCrO provided in an embodiment of the present invention2-CuCr2O4Composite material can but degrade 87%
Methyl orange, it is seen that single AgCrO2Degrading activity substantially reduced after repeatedly degradation operation, and the embodiment of the present invention carries
The AgCrO of confession2-CuCr2O4The photocatalytic activity of composite material, which has no, to be substantially reduced, and is shown provided in an embodiment of the present invention
AgCrO2-CuCr2O4The stability of composite material is relative to single AgCrO2Tool increases significantly.
In conclusion the AgCrO of the embodiment of the present invention2-CuCr2O4The preparation method of composite material is simple for process, operation side
Just.The AgCrO that above-mentioned preparation method is prepared2-CuCr2O4Composite material has very high photocatalytic activity and stability.This
Inventive embodiments additionally provide above-mentioned AgCrO2-CuCr2O4Application of the composite material in photochemical catalyst.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of AgCrO2-CuCr2O4The preparation method of composite material, which is characterized in that it includes the following steps：
Soluble mantoquita, silver salt and soluble in water be uniformly mixed of chromic salts are obtained into mixed liquor；
The pH of the mixed liquor is adjusted to alkalinity, and reacts 40-80h at 170-220 DEG C and sediment is obtained by filtration；
By the sediment undergoes washing, drying, calcining.
2. AgCrO according to claim 12-CuCr2O4The preparation method of composite material, which is characterized in that the mantoquita
For nitrate trihydrate copper；Preferably, the silver salt is silver nitrate；It is furthermore preferred that the chromic salts is nine water chromic nitrates.
3. AgCrO according to claim 12-CuCr2O4The preparation method of composite material, which is characterized in that the mantoquita,
The molar ratio of the silver salt and the chromic salts is 1-2：2-4：5-8.5.
4. AgCrO according to claim 12-CuCr2O4The preparation method of composite material, which is characterized in that will be described mixed
The pH for closing liquid is adjusted to 9-12.
5. AgCrO according to claim 42-CuCr2O4The preparation method of composite material, which is characterized in that adjusting pH makes
With the sodium hydroxide solution of 4-6mol/L.
6. AgCrO according to claim 12-CuCr2O4The preparation method of composite material, which is characterized in that the cleaning
Be using acid, water and alcohol alternately clean the sediment to pH be neutrality.
7. AgCrO according to claim 12-CuCr2O4The preparation method of composite material, which is characterized in that the drying
It is that the sediment after cleaning is handled into 5-8h at 70-90 DEG C.
8. AgCrO according to claim 12-CuCr2O4The preparation method of composite material, which is characterized in that the calcining
It is that the sediment after drying handles 2-3h at 400-700 DEG C.
9. a kind of AgCrO2-CuCr2O4Composite material, which is characterized in that it is described in any one of claim 1-8
AgCrO2-CuCr2O4The preparation method of composite material is prepared.
10. AgCrO according to claim 92-CuCr2O4Application of the composite material in photochemical catalyst.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112007671A (en) * | 2020-09-14 | 2020-12-01 | 广西师范大学 | Fe1Co6-P @ CC electrocatalyst and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1799690A (en) * | 2006-01-13 | 2006-07-12 | 南京大学 | Visible light responsible photocatalysis material of AgTO2 type composite oxide and its application |
| EP1768203A2 (en) * | 2005-08-02 | 2007-03-28 | Wilson Greatbatch Ltd. | Battery electrodes |
| CN104437516A (en) * | 2014-11-14 | 2015-03-25 | 武汉理工大学 | CuCrO2/TiO2 composite photocatalyst and preparation method thereof |
| WO2016064192A1 (en) * | 2014-10-23 | 2016-04-28 | 주식회사 엘지화학 | Composition for forming conductive pattern by electromagnetic wave radiation, method for forming conductive pattern using same, and resin structure having conductive pattern |
| CN105679941A (en) * | 2016-01-22 | 2016-06-15 | 杭州众能光电科技有限公司 | P-type delafossite structure semiconductor material-based plane structure perovskite solar cell and preparation thereof |
-
2018
- 2018-03-06 CN CN201810183061.4A patent/CN108295868B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1768203A2 (en) * | 2005-08-02 | 2007-03-28 | Wilson Greatbatch Ltd. | Battery electrodes |
| CN1799690A (en) * | 2006-01-13 | 2006-07-12 | 南京大学 | Visible light responsible photocatalysis material of AgTO2 type composite oxide and its application |
| WO2016064192A1 (en) * | 2014-10-23 | 2016-04-28 | 주식회사 엘지화학 | Composition for forming conductive pattern by electromagnetic wave radiation, method for forming conductive pattern using same, and resin structure having conductive pattern |
| CN104437516A (en) * | 2014-11-14 | 2015-03-25 | 武汉理工大学 | CuCrO2/TiO2 composite photocatalyst and preparation method thereof |
| CN105679941A (en) * | 2016-01-22 | 2016-06-15 | 杭州众能光电科技有限公司 | P-type delafossite structure semiconductor material-based plane structure perovskite solar cell and preparation thereof |
Non-Patent Citations (1)
| Title |
|---|
| K. MAGESHWARI ET AL.: ""Novel CuCr2O4 embedded CuO nanocomposites for efficientphotodegradation of organic dyes"", 《APPLIED SURFACE SCIENCE》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007671A (en) * | 2020-09-14 | 2020-12-01 | 广西师范大学 | Fe1Co6-P @ CC electrocatalyst and preparation method thereof |
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