CN108993501A - A kind of silver-silver oxide-zinc oxide photocatalysis material preparation method - Google Patents
A kind of silver-silver oxide-zinc oxide photocatalysis material preparation method Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 32
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 32
- -1 silver-silver oxide-zinc oxide Chemical compound 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000011787 zinc oxide Substances 0.000 claims abstract description 44
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052709 silver Inorganic materials 0.000 claims abstract description 35
- 239000004332 silver Substances 0.000 claims abstract description 35
- 239000002245 particle Substances 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 14
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229960000935 dehydrated alcohol Drugs 0.000 claims abstract description 13
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims abstract description 13
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229940043237 diethanolamine Drugs 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- BEAZKUGSCHFXIQ-UHFFFAOYSA-L zinc;diacetate;dihydrate Chemical compound O.O.[Zn+2].CC([O-])=O.CC([O-])=O BEAZKUGSCHFXIQ-UHFFFAOYSA-L 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 18
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- ONVGIJBNBDUBCM-UHFFFAOYSA-N silver;silver Chemical compound [Ag].[Ag+] ONVGIJBNBDUBCM-UHFFFAOYSA-N 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 38
- 238000000034 method Methods 0.000 description 9
- 238000006555 catalytic reaction Methods 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 3
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Substances [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- PCHPORCSPXIHLZ-UHFFFAOYSA-N diphenhydramine hydrochloride Chemical compound [Cl-].C=1C=CC=CC=1C(OCC[NH+](C)C)C1=CC=CC=C1 PCHPORCSPXIHLZ-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- KHJDQHIZCZTCAE-UHFFFAOYSA-N oxosilver;silver Chemical compound [Ag].[Ag]=O KHJDQHIZCZTCAE-UHFFFAOYSA-N 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910001923 silver oxide Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 229940031098 ethanolamine Drugs 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- OGFYIDCVDSATDC-UHFFFAOYSA-N silver silver Chemical compound [Ag].[Ag] OGFYIDCVDSATDC-UHFFFAOYSA-N 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- 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
-
- 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
- B01J35/391—Physical properties of the active metal ingredient
- B01J35/393—Metal or metal oxide crystallite size
-
- 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
- B01J35/396—Distribution of the active metal ingredient
- B01J35/399—Distribution of the active metal ingredient homogeneously throughout the support particle
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a kind of silver-silver oxide-zinc oxide photocatalysis material preparation methods, it include: (1) under 50~60 DEG C of stirring condition, the silver nitrate solution of 0.01~0.1mol/L and strong base solution are added in the reaction system containing persulfate solution simultaneously, are stirred to react 30~50min, it is cooling, filtering, washing, it is dry, obtain nano oxidized silver particles, wherein, the molar ratio of the persulfate solution and the strong base solution is 1:2~5；(2) a certain amount of Zinc diacetate dihydrate and diethanol amine are added in dehydrated alcohol, 2~4h is stirred under 60 DEG C of water bath conditions, it is cooling, it is aged 36~72h at room temperature, obtains zinc oxide colloidal sol；(3) it is that 2~4:1 is mixed according to molar ratio with nano silver particles by the nano oxidized silver particles in step (1), is added in above-mentioned zinc oxide colloidal sol, ultrasonic disperse is uniform, centrifuge separation, washing, it is dry, obtain silver-silver oxide-zinc oxide photocatalysis material.Silver-silver oxide-zinc oxide photocatalysis material in the present invention has preferable photocatalysis performance.
Description
Technical field
The present invention relates to Photocatalitic Technique of Semiconductor fields, more particularly to a kind of silver-silver oxide-zinc oxide photocatalysis material
The preparation method of material.
Background technique
With the development of economy, water pollution situation is more serious, and photocatalysis technology is at waste water developed in recent years
Reason technology.Photochemical catalyst is the substance for causing catalysis to be reacted under light irradiation, and by light-catalyzed reaction, generating has Strong oxdiative ability
Hydroxyl radical free radical and super oxonium ion, come decomposing organic pollutant matter of degrading.
As the key of Photocatalyst, the importance of photochemical catalyst selection is self-evident.Wherein, zinc oxide
It (ZnO) is a kind of novel broad stopband direct band gap Group II-VI semiconductor material, forbidden bandwidth is penetrated in 3.2~3.41eV or so
Rate is high, and has high mechanical properties, nontoxic, stable chemical performance characteristic etc..The band structure and TiO of ZnO2It is similar,
Under ultraviolet light, ZnO film can produce electron-hole pair, strong oxidation-reduction system be formed in film surface, to sky
Organic material resource in gas or aqueous solution carries out oxidative degradation, and therefore, ZnO can be used as a kind of up-and-coming catalysis material.
But the prior art exists, ZnO is still not ideal enough as the catalytic effect of photochemical catalyst.
For this reason, it is necessary in view of the above-mentioned problems, propose a kind of silver-silver oxide-zinc oxide photocatalysis material preparation method,
It is able to solve problems of the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of silver-silver oxide-zinc oxide photocatalysis material preparation methods, existing to overcome
There is the deficiency in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of silver-silver oxide-zinc oxide photocatalysis material preparation method, comprising:
(1) under 50~60 DEG C of stirring condition, simultaneously by the silver nitrate solution of 0.01~0.1mol/L and strong base solution
It is added in the reaction system containing persulfate solution, is stirred to react 30~50min, it is cooling, it filters, washs, it is dry, it is received
Rice oxidation silver particles, wherein the molar ratio of the persulfate solution and the strong base solution is 1:2~5；
(2) a certain amount of Zinc diacetate dihydrate and diethanol amine are added in dehydrated alcohol, under 60 DEG C of water bath conditions
2~4h is stirred, it is cooling, it is aged 36~72h at room temperature, obtains zinc oxide colloidal sol；
It (3) is that 2~4:1 is mixed according to molar ratio with nano silver particles by the nano oxidized silver particles in step (1),
It being added in above-mentioned zinc oxide colloidal sol, ultrasonic disperse is uniform, is centrifugated, and washs, and it is dry, it obtains silver-oxidation silver-ZnO light and urges
Change material.
Preferably, in step (1), the partial size of the nano oxidized silver particles is 10~30nm.
Preferably, in step (1), the strong base solution is selected from potassium hydroxide solution or sodium hydroxide solution, the over cure
Acid salt solution is selected from sodium peroxydisulfate solution or potassium persulfate solution.
Preferably, in step (1), the molar ratio of the persulfate solution and the strong base solution is 1:3.
Preferably, in step (2), the molar ratio of the diethanol amine and the dehydrated alcohol is 1:6.
Preferably, in step (2), the concentration of zinc ion is 1~2mol/L in the zinc oxide colloidal sol.
Preferably, in step (3), the molar ratio of the nano oxidized silver particles and the nano silver particles is 3:1.
Preferably, the mass fraction of the zinc oxide in the silver-silver oxide-zinc oxide photocatalysis material is 70~75%.
Compared with the prior art, the advantages of the present invention are as follows: silver-silver oxide-zinc oxide photocatalysis material in the present invention,
Silver and silver oxide can be evenly distributed in zinc oxide, carrier transport efficiency be improved, to greatly strengthen zinc oxide
Photocatalysis performance.
Specific embodiment
The present invention is described further by the following example: according to following embodiments, the present invention may be better understood.
However, as it will be easily appreciated by one skilled in the art that specific material ratio, process conditions and its result described in embodiment are only used
In illustrating the present invention, without the present invention described in detail in claims should will not be limited.
The present invention discloses a kind of silver-silver oxide-zinc oxide photocatalysis material preparation method, comprising:
(1) under 50~60 DEG C of stirring condition, simultaneously by the silver nitrate solution of 0.01~0.1mol/L and strong base solution
It is added in the reaction system containing persulfate solution, is stirred to react 30~50min, it is cooling, it filters, washs, it is dry, it is received
Rice oxidation silver particles, wherein the molar ratio of the persulfate solution and the strong base solution is 1:2~5；
(2) a certain amount of Zinc diacetate dihydrate and diethanol amine are added in dehydrated alcohol, under 60 DEG C of water bath conditions
2~4h is stirred, it is cooling, it is aged 36~72h at room temperature, obtains zinc oxide colloidal sol；
It (3) is that 2~4:1 is mixed according to molar ratio with nano silver particles by the nano oxidized silver particles in step (1),
It being added in above-mentioned zinc oxide colloidal sol, ultrasonic disperse is uniform, is centrifugated, and washs, and it is dry, it obtains silver-oxidation silver-ZnO light and urges
Change material.
In step (1), the partial size of the nano oxidized silver particles is 10~30nm, it is preferred that the nano oxidized silver granuel
The partial size of son is 20nm；The strong base solution is selected from potassium hydroxide solution or sodium hydroxide solution, the persulfate solution choosing
From sodium peroxydisulfate solution or potassium persulfate solution；The molar ratio of the persulfate solution and the strong base solution is 1:3.
In step (2), the molar ratio of the diethanol amine and the dehydrated alcohol is 1:6；Zinc in the zinc oxide colloidal sol
The concentration of ion is 1~2mol/L, it is preferred that the concentration of zinc ion is 1.2mol/L in the zinc oxide colloidal sol.
In step (3), the molar ratio of the nano oxidized silver particles and the nano silver particles is 3:1.
The quality of zinc oxide in silver-silver oxide-zinc oxide photocatalysis material made from method according to the present invention point
Number is 70~75%.
It is following to be illustrated with specifically embodiment, to prepare silver-silver oxide-zinc oxide photocatalysis material in the present invention
Material.
Embodiment 1
(1) under 50 DEG C of stirring condition, the silver nitrate solution of 0.01mol/L and sodium hydroxide solution is added simultaneously and contained
In the reaction system for having sodium peroxydisulfate solution, it is stirred to react 30min, it is cooling, it filters, washs, dry, obtaining partial size is 10m's
Nano oxidized silver particles, wherein the molar ratio of the sodium peroxydisulfate solution and the sodium hydroxide solution is 1:2；
(2) a certain amount of Zinc diacetate dihydrate and diethanol amine are added in dehydrated alcohol, under 60 DEG C of water bath conditions
2h is stirred, it is cooling, it is aged 36h at room temperature, the concentration for obtaining zinc ion is the zinc oxide colloidal sol of 1mol/L, wherein the diethyl
The molar ratio of hydramine and the dehydrated alcohol is 1:6；
(3) it is that 2:1 is mixed according to molar ratio with nano silver particles by the nano oxidized silver particles in step (1), adds
Entering in above-mentioned zinc oxide colloidal sol, ultrasonic disperse is uniform, is centrifugated, and washs, and it is dry, obtain silver-silver oxide-zinc oxide photocatalysis
Material.
Embodiment 2
(1) under 55 DEG C of stirring condition, the silver nitrate solution of 0.05mol/L and sodium hydroxide solution is added simultaneously and contained
In the reaction system for having sodium peroxydisulfate solution, it is stirred to react 40min, it is cooling, it filters, washs, dry, obtaining partial size is 20nm's
Nano oxidized silver particles, wherein the molar ratio of the sodium peroxydisulfate solution and the sodium hydroxide solution is 1:3；
(2) a certain amount of Zinc diacetate dihydrate and diethanol amine are added in dehydrated alcohol, under 60 DEG C of water bath conditions
3h is stirred, it is cooling, it is aged 48h at room temperature, the concentration for obtaining zinc ion is the zinc oxide colloidal sol of 1.5mol/L, wherein described two
The molar ratio of ethanol amine and the dehydrated alcohol is 1:6；
(3) it is that 3:1 is mixed according to molar ratio with nano silver particles by the nano oxidized silver particles in step (1), adds
Entering in above-mentioned zinc oxide colloidal sol, ultrasonic disperse is uniform, is centrifugated, and washs, and it is dry, obtain silver-silver oxide-zinc oxide photocatalysis
Material.
Embodiment 3
(1) under 60 DEG C of stirring condition, the silver nitrate solution of 0.1mol/L and sodium hydroxide solution is added simultaneously and contained
In the reaction system for having sodium peroxydisulfate solution, it is stirred to react 50min, it is cooling, it filters, washs, dry, obtaining partial size is 30nm's
Nano oxidized silver particles, wherein the molar ratio of the sodium peroxydisulfate solution and the sodium hydroxide solution is 1:5；
(2) a certain amount of Zinc diacetate dihydrate and diethanol amine are added in dehydrated alcohol, under 60 DEG C of water bath conditions
4h is stirred, it is cooling, it is aged 72h at room temperature, the concentration for obtaining zinc ion is the zinc oxide colloidal sol of 2mol/L, wherein the diethyl
The molar ratio of hydramine and the dehydrated alcohol is 1:6；
(3) it is that 4:1 is mixed according to molar ratio with nano silver particles by the nano oxidized silver particles in step (1), adds
Entering in above-mentioned zinc oxide colloidal sol, ultrasonic disperse is uniform, is centrifugated, and washs, and it is dry, obtain silver-silver oxide-zinc oxide photocatalysis
Material.
Silver-silver oxide-the zinc oxide photocatalysis material being prepared according to the method in above-described embodiment 1~3, dioxy
The mass fraction for changing titanium is 70~75%.
Ultraviolet-visible light spectrum analysis is carried out to silver-silver oxide obtained in the present invention-zinc oxide photocatalysis material to learn,
The photon absorbing intensity of the catalysis material significantly improves compared with pure zinc oxide, shows that silver-silver oxide is compound and extends zinc oxide
The wave-length coverage of light absorption enhances the absorbing ability of the catalysis material, so that the silver-oxidation silver-ZnO light is urged
The catalytic efficiency for changing material improves 18~22%.
Finally, it is to be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.
Claims (8)
1. a kind of silver-silver oxide-zinc oxide photocatalysis material preparation method characterized by comprising
(1) under 50~60 DEG C of stirring condition, the silver nitrate solution of 0.01~0.1mol/L and strong base solution are added simultaneously
In reaction system containing persulfate solution, it is stirred to react 30~50min, it is cooling, it filters, washs, it is dry, obtain nano oxygen
Change silver particles, wherein the molar ratio of the persulfate solution and the strong base solution is 1:2~5；
(2) a certain amount of Zinc diacetate dihydrate and diethanol amine are added in dehydrated alcohol, stir 2 under 60 DEG C of water bath conditions
~4h, it is cooling, it is aged 36~72h at room temperature, obtains zinc oxide colloidal sol；
(3) it is that 2~4:1 is mixed according to molar ratio with nano silver particles by the nano oxidized silver particles in step (1), is added
In above-mentioned zinc oxide colloidal sol, ultrasonic disperse is uniform, is centrifugated, and washs, dry, obtains silver-silver oxide-zinc oxide photocatalysis material
Material.
2. silver according to claim 1-silver oxide-zinc oxide photocatalysis material preparation method, which is characterized in that step
(1) in, the partial size of the nano oxidized silver particles is 10~30nm.
3. silver according to claim 1-silver oxide-zinc oxide photocatalysis material preparation method, which is characterized in that step
(1) in, the strong base solution is selected from potassium hydroxide solution or sodium hydroxide solution, and the persulfate solution is selected from sodium peroxydisulfate
Solution or potassium persulfate solution.
4. silver according to claim 1-silver oxide-zinc oxide photocatalysis material preparation method, which is characterized in that step
(1) in, the molar ratio of the persulfate solution and the strong base solution is 1:3.
5. silver according to claim 1-silver oxide-zinc oxide photocatalysis material preparation method, which is characterized in that step
(2) in, the molar ratio of the diethanol amine and the dehydrated alcohol is 1:6.
6. silver according to claim 1-silver oxide-zinc oxide photocatalysis material preparation method, which is characterized in that step
(2) in, the concentration of zinc ion is 1~2mol/L in the zinc oxide colloidal sol.
7. silver according to claim 1-silver oxide-zinc oxide photocatalysis material preparation method, which is characterized in that step
(3) in, the molar ratio of the nano oxidized silver particles and the nano silver particles is 3:1.
8. silver according to claim 1-silver oxide-zinc oxide photocatalysis material preparation method, which is characterized in that described
The mass fraction of zinc oxide in silver-silver oxide-zinc oxide photocatalysis material is 70~75%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252299A (en) * | 2019-06-27 | 2019-09-20 | 太原理工大学 | A kind of ternary visible Ag/Ag2O/ZnO catalyst and its preparation method and application |
| CN114505102A (en) * | 2022-03-08 | 2022-05-17 | 河北科技师范学院 | ZnO @ PDA/Ag-Ag2O nano composite material and preparation method and application thereof |
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