CN108993488A - A kind of Ag/TiO2The preparation method of catalyst - Google Patents
A kind of Ag/TiO2The preparation method of catalyst Download PDFInfo
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- CN108993488A CN108993488A CN201810741187.9A CN201810741187A CN108993488A CN 108993488 A CN108993488 A CN 108993488A CN 201810741187 A CN201810741187 A CN 201810741187A CN 108993488 A CN108993488 A CN 108993488A
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- tio
- colloidal sol
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- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000003054 catalyst Substances 0.000 title claims abstract description 13
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(I) nitrate Inorganic materials [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910021649 silver-doped titanium dioxide Inorganic materials 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 239000012467 final product Substances 0.000 claims abstract description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 6
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims abstract description 5
- 239000001509 sodium citrate Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims 1
- -1 isopropyls Ester Chemical class 0.000 claims 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011941 photocatalyst Substances 0.000 abstract description 3
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 abstract 1
- 230000003115 biocidal effect Effects 0.000 description 5
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 244000248349 Citrus limon Species 0.000 description 1
- 235000005979 Citrus limon Nutrition 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
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229940072172 tetracycline antibiotic Drugs 0.000 description 1
- 238000003466 welding 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- 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
- C02F2101/305—Endocrine disruptive agents
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- 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
The invention discloses a kind of Ag/TiO2The preparation method of catalyst, steps are as follows: by sodium citrate and AgNO3Be placed in ml headspace bottle, persistently stir 2-3h under 65-75 DEG C of water-bath, when solution from it is colourless be gradually deep to dark brown when, by HNO3It is added dropwise in solution, then isopropyl titanate is added dropwise in solution, 44-46 DEG C is persistently stirred 47-49h, and resulting solution is placed in autoclave, reacts 5.5-6.5h in 115-125 DEG C of baking oven to get Ag-TiO is arrived2Colloidal sol；Colloidal sol taking-up in the reaction kettle is placed on after being dried in 65-75 DEG C of baking oven and is ground to obtain the final product.This method is easy, quick, easy to operate, the Ag/TiO of preparation2Catalyst is a kind of excellent visible-light photocatalyst, is worth with certain water treatment applications.
Description
Technical field
The present invention relates to a kind of Ag/TiO2The preparation method of catalyst.
Background technique
China is both antibiotics production big country and antibiotic usage big country, the output and consumption of annual antibiotic
It is tens times of foreign countries.Currently, antibiotic spreads unchecked use, already lead to the water for entering us there are many approach and soil it
In, such as the waste water of health care industry, excrement of animal, etc. produces serious influence to China's environmental problem.When antibiotic is useless
After water enters water body, it is used as foeign element, original biological chain can be broken, welding endangers people's health.
The one kind of tetracycline antibiotics as antibiotic promotes livestock since it can inhibit enteric bacteria to breed
Growth, is widely used in always medical industry and animal husbandry, the waste water generated, by the simple bioanalysis of traditional handicraft,
Absorption method, oxidizing process are difficult to degradable.Currently, photocatalysis technology has much been ground as a kind of novel high-level oxidation technology
Study carefully field to discuss warmly.But due to TiO2Only there is catalytic effect in ultraviolet region therefore limited to its practical application, and due to it
Ultraviolet source is needed, improves the cost using photocatalysis oxidation technique processing waste water, therefore the present invention is to TiO2It is doped and changes
Property, visible luminous effect is made it have, it is made above to greatly reduce cost in application.
Summary of the invention
The purpose of the present invention is to provide a kind of Ag/TiO2The preparation method of catalyst.
The present invention is realized by following technical solution:
A kind of Ag/TiO2The preparation method of catalyst includes the following steps: the lemon for being 3.5mmol/L by 90-100 parts of concentration
Sour sodium and 5-10 parts of AgNO3Be placed in ml headspace bottle, persistently stir 2-3h under 65-75 DEG C of water-bath, to solution from it is colourless gradually
When being deep to dark brown, by 15-25 parts of HNO3It is added dropwise in solution, solution then is added dropwise in 10-20 parts of isopropyl titanates
In, 44-46 DEG C is persistently stirred 47-49h, and resulting solution is placed in autoclave, is reacted in 115-125 DEG C of baking oven
5.5-6.5h to get Ag-TiO is arrived2Colloidal sol；Colloidal sol taking-up in the reaction kettle is placed on after being dried in 65-75 DEG C of baking oven and is ground
To obtain the final product；Each raw material is parts by weight.
Preferably, in the preparation method, 2.5h is persistently stirred under 70 DEG C of water-baths.
Preferably, in the preparation method, 45 DEG C are persistently stirred 48h.
Preferably, in the preparation method, 6h is reacted in 120 DEG C of baking oven.
Preferably, in the preparation method, the colloidal sol taking-up in the reaction kettle is placed in 70 DEG C of baking ovens and is dried.
The technology of the present invention effect:
This method is easy, quick, easy to operate, the Ag/TiO of preparation2Catalyst is a kind of excellent visible-light photocatalyst, is had
Certain water treatment applications value.
Specific embodiment
Essentiality content of the invention is specifically introduced below with reference to embodiment.
Embodiment 1
A kind of Ag/TiO2The preparation method of catalyst includes the following steps: the sodium citrate for being 3.5mmol/L by 95 parts of concentration
With 8 parts of AgNO3It is placed in ml headspace bottle, persistently stirs 2.5h under 70 DEG C of water-baths, be gradually deep to dark brown from colourless to solution
When, by 20 parts of HNO3It is added dropwise in solution, then 15 parts of isopropyl titanates is added dropwise in solution, 45 DEG C of lasting stirrings
Resulting solution is placed in autoclave by 48h, reacts 6h in 120 DEG C of baking oven to get Ag-TiO is arrived2Colloidal sol；It should
Colloidal sol taking-up in reaction kettle is placed in 70 DEG C of baking ovens grinds after drying to obtain the final product；Each raw material is parts by weight.
Embodiment 2
A kind of Ag/TiO2The preparation method of catalyst includes the following steps: the sodium citrate for being 3.5mmol/L by 90 parts of concentration
With 5 parts of AgNO3Be placed in ml headspace bottle, persistently stir 2h under 65 DEG C of water-baths, when solution from it is colourless be gradually deep to dark brown when,
By 15 parts of HNO3It is added dropwise in solution, then 10 parts of isopropyl titanates is added dropwise in solution, 44 DEG C are persistently stirred 47h,
Resulting solution is placed in autoclave, reacts 5.5h in 115 DEG C of baking oven to get Ag-TiO is arrived2Colloidal sol；This is anti-
It answers the colloidal sol taking-up in kettle to be placed in 65 DEG C of baking ovens to grind after drying to obtain the final product；Each raw material is parts by weight.
Embodiment 3
A kind of Ag/TiO2The preparation method of catalyst includes the following steps: the sodium citrate for being 3.5mmol/L by 100 parts of concentration
With 10 parts of AgNO3It is placed in ml headspace bottle, persistently stirs 3h under 75 DEG C of water-baths, be gradually deep to dark brown from colourless to solution
When, by 25 parts of HNO3It is added dropwise in solution, then 20 parts of isopropyl titanates is added dropwise in solution, 46 DEG C of lasting stirrings
Resulting solution is placed in autoclave by 49h, reacts 6.5h in 125 DEG C of baking oven to get Ag-TiO is arrived2Colloidal sol；It will
Colloidal sol taking-up in the reaction kettle is placed in 75 DEG C of baking ovens grinds after drying to obtain the final product；Each raw material is parts by weight.
This method is easy, quick, easy to operate, the Ag/TiO of preparation2Catalyst is a kind of excellent visible-light photocatalyst,
It is worth with certain water treatment applications.
Claims (5)
1. a kind of Ag/TiO2The preparation method of catalyst, it is characterised in that include the following steps: be by 90-100 parts of concentration
The sodium citrate of 3.5mmol/L and 5-10 parts of AgNO3It is placed in ml headspace bottle, persistently stirs 2-3h under 65-75 DEG C of water-bath, to
Solution from it is colourless be gradually deep to dark brown when, by 15-25 parts of HNO3It is added dropwise in solution, then by 10-20 parts of metatitanic acid isopropyls
Ester is added dropwise in solution, and 44-46 DEG C is persistently stirred 47-49h, resulting solution is placed in autoclave, in 115-125
DEG C baking oven in reaction 5.5-6.5h to get arrive Ag-TiO2Colloidal sol；Colloidal sol taking-up in the reaction kettle is placed on 65-75 DEG C of baking
It is ground after being dried in case to obtain the final product；Each raw material is parts by weight.
2. preparation method according to claim 1, it is characterised in that: persistently stir 2.5h under 70 DEG C of water-baths.
3. preparation method according to claim 1, it is characterised in that: 45 DEG C are persistently stirred 48h.
4. preparation method according to claim 1, it is characterised in that: react 6h in 120 DEG C of baking oven.
5. preparation method according to claim 1, it is characterised in that: the colloidal sol taking-up in the reaction kettle is placed on 70 DEG C of bakings
It is dried in case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741187.9A CN108993488A (en) | 2018-07-08 | 2018-07-08 | A kind of Ag/TiO2The preparation method of catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741187.9A CN108993488A (en) | 2018-07-08 | 2018-07-08 | A kind of Ag/TiO2The preparation method of catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108993488A true CN108993488A (en) | 2018-12-14 |
Family
ID=64599447
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810741187.9A Withdrawn CN108993488A (en) | 2018-07-08 | 2018-07-08 | A kind of Ag/TiO2The preparation method of catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108993488A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545200A (en) * | 2020-05-21 | 2020-08-18 | 沈阳药科大学 | Ce-Ag-TiO2Nano composite antibacterial material and preparation method thereof |
| CN111573930A (en) * | 2020-05-20 | 2020-08-25 | 山东大学 | Visible light photocatalysis-ClO2Method for efficiently removing organic pollutants in wastewater by oxidation combined process |
-
2018
- 2018-07-08 CN CN201810741187.9A patent/CN108993488A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573930A (en) * | 2020-05-20 | 2020-08-25 | 山东大学 | Visible light photocatalysis-ClO2Method for efficiently removing organic pollutants in wastewater by oxidation combined process |
| CN111573930B (en) * | 2020-05-20 | 2022-04-05 | 山东大学 | Visible light photocatalysis-ClO2Method for efficiently removing organic pollutants in wastewater by oxidation combined process |
| CN111545200A (en) * | 2020-05-21 | 2020-08-18 | 沈阳药科大学 | Ce-Ag-TiO2Nano composite antibacterial material and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181214 |