CN110075839A - Platinum loaded tungsten trioxide composite photo-catalyst and preparation method and purposes - Google Patents
Platinum loaded tungsten trioxide composite photo-catalyst and preparation method and purposes Download PDFInfo
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- CN110075839A CN110075839A CN201910508242.4A CN201910508242A CN110075839A CN 110075839 A CN110075839 A CN 110075839A CN 201910508242 A CN201910508242 A CN 201910508242A CN 110075839 A CN110075839 A CN 110075839A
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- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 title claims abstract description 72
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 37
- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- -1 tungstate dihydrate Chemical class 0.000 claims abstract description 34
- 239000000243 solution Substances 0.000 claims abstract description 29
- 239000002253 acid Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000047 product Substances 0.000 claims abstract description 19
- 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 claims abstract description 17
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 17
- 239000011734 sodium Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 229910052724 xenon Inorganic materials 0.000 claims abstract description 13
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 11
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 9
- 239000012498 ultrapure water Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000013067 intermediate product Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 230000000593 degrading effect Effects 0.000 claims abstract description 4
- 229940046892 lead acetate Drugs 0.000 claims abstract description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 8
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 abstract description 5
- 238000013459 approach Methods 0.000 description 7
- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 238000003760 magnetic stirring Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000001699 photocatalysis Effects 0.000 description 4
- 239000012901 Milli-Q water Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- KQNKJJBFUFKYFX-UHFFFAOYSA-N acetic acid;trihydrate Chemical compound O.O.O.CC(O)=O KQNKJJBFUFKYFX-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000010998 test method Methods 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
- B01J23/38—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
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/652—Chromium, molybdenum or tungsten
- B01J23/6527—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
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- 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
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- 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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- 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)
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Abstract
Platinum loaded tungsten trioxide composite photo-catalyst and preparation method and purposes, catalyst are made of sodium tungstate, lead acetate, composition ratio 1:1；The step of preparation method are as follows: (1) the tungstate dihydrate acid sodium of 1.6mmol and acetate trihydrate lead are dissolved in ultrapure water respectively, the coating material of 1ml is added in acetate trihydrate lead again, and be slowly added dropwise into tungstate dihydrate acid sodium solution, stir to get uniform mixed solution；(2) mixed liquor is poured into water heating kettle, is put into air dry oven and is heat-treated, to the end of reacting, washed repeatedly after water heating kettle cooled to room temperature, obtain first product；(3) in first product plus 20ml nitric acid solution, stirring, hydro-thermal, washing, dry intermediate products；(4) it takes 3ml chloroplatinic acid solution to be added in intermediate products, until being irradiated under purple lamp, washs, dries to obtain final products；The purposes of catalyst, the purple light irradiation time is 1h, and application is rose-red of degrading under xenon lamp simulated solar irradiation.
Description
Technical field
The present invention relates to photocatalysis technologies, and in particular to the technology of preparing of platinum loaded tungsten trioxide composite photo-catalyst.
Background technique
China forces scientific research circle just seeking some new, frontier nature the great demand of environmental protection, energy development
Science and technology solves two hang-ups that today's society is faced.The solution of environmental pollution and energy shortage also rests on biography
The technological layer of system, the hydrogen manufacturing of photocatalytic cleavage water and the emergence of environmental photocatlytsis open a new shortcut.In recent years, light
Development of the catalysis technical field in China has entered the more mature stage, contributes to power for environmental improvement and energy development
Amount.
Tungstic acid raw material sources are extensive, cheap, pollution-free and stable optical performance, be remembered as most having it is practical before
One of photochemical catalyst of scape, crystal form due to the contained crystallization water difference and have differences, make its forbidden bandwidth 2.5 ~ 3.1
Between eV, show that the valence band of tungstic acid and conduction band positions have the property coordinated.However, the valence band location of tungstic acid exists always
Zero hereinafter, the compound probability for resulting in its photo-generated carrier increases, to reduce photocatalytic activity.Therefore, it is necessary to three oxygen
Change tungsten and carry out property modification, it is made to make full use of solar energy, improves light quantum utilization rate.
Summary of the invention
Present invention aims at the activity for improving photochemical catalyst, improve solar energy utilization ratio.
The present invention is platinum loaded tungsten trioxide composite photo-catalyst and preparation method and purposes, and platinum loaded tungsten trioxide is compound
Photochemical catalyst is made of sodium tungstate, lead acetate, composition ratio 1:1.
The preparation method of platinum loaded tungsten trioxide composite photo-catalyst the steps include: (1) respectively by two water of 1.6mmol
Sodium tungstate and acetate trihydrate lead are dissolved in ultrapure water, then the coating material of 1ml is added in acetate trihydrate lead, and slowly by it
It is added dropwise in tungstate dihydrate acid sodium solution, stirs to get uniform mixed solution；
(2) mixed liquor is poured into water heating kettle, is put into air dry oven and is heat-treated, to the end of reacting, water heating kettle natural cooling
It is washed repeatedly after to room temperature, obtains first product；
(3) in first product plus 20ml nitric acid solution, stirring, hydro-thermal, washing, dry intermediate products；
(4) it takes 3ml chloroplatinic acid solution to be added in intermediate products, until irradiating a period of time under purple lamp, washs, is so dry that finally to produce
Product.
The purposes of platinum loaded tungsten trioxide composite photo-catalyst, the purple light irradiation time is 1h, and application is in xenon lamp
It degrades under simulated solar irradiation rose-red.
The invention has the beneficial effects that: platinum loaded tungsten trioxide composite photo-catalyst improves solar energy utilization ratio, drop
The low recombination rate of electron-hole pair, and the potential value of tungsten oxide class compound has been excavated, improve tungstic acid production
The practicability of product.
Platinum loaded tungsten trioxide composite photo-catalyst prepared by the present invention is substantially better than original sample tungsten trioxide photocatalyst,
The degradation rate that 300W xenon lamp irradiates lower rose-red has been more than 95%.
Platinum loaded tungsten trioxide composite photo-catalyst catalytic activity prepared by the present invention is stablized, the recyclable repeatedly benefit of catalyst
With.
Detailed description of the invention
Fig. 1 show the XRD spectrum of sample prepared by the present invention, and the SEM that Fig. 2 show sample prepared by the present invention shines
Piece, Fig. 3 show the UV-DRS map of sample prepared by the present invention, and Fig. 4 show sample prepared by the present invention in 300W xenon lamp
The degradation figure of rose-red is irradiated, the sample that Fig. 5 show the preparation of the embodiment of the present invention 3 repeats the circulation of four degradation experiments
Figure.
Specific embodiment
The present invention is platinum loaded tungsten trioxide composite photo-catalyst and preparation method and purposes, and platinum loaded tungsten trioxide is compound
Photochemical catalyst is made of sodium tungstate, lead acetate, composition ratio 1:1.
The preparation method of platinum loaded tungsten trioxide composite photo-catalyst the steps include: (1) respectively by two water of 1.6mmol
Sodium tungstate and acetate trihydrate lead are dissolved in ultrapure water, then the coating material of 1ml is added in acetate trihydrate lead, and slowly by it
It is added dropwise in tungstate dihydrate acid sodium solution, stirs to get uniform mixed solution；
(2) mixed liquor is poured into water heating kettle, is put into air dry oven and is heat-treated, to the end of reacting, water heating kettle natural cooling
It is washed repeatedly after to room temperature, obtains first product；
(3) in first product plus 20ml nitric acid solution, stirring, hydro-thermal, washing, dry intermediate products；
(4) it takes 3ml chloroplatinic acid solution to be added in intermediate products, until irradiating a period of time under purple lamp, washs, is so dry that finally to produce
Product.
The tungstate dihydrate acid sodium of approach described above and the molar ratio of acetate trihydrate lead are 1:1, and stirring uses magnetic agitation
10min。
The heat treatment temperature of approach described above being put into air dry oven is 180 DEG C, and the time is 12h, and washing is used super
Pure water and dehydrated alcohol respectively wash three times, and drying is to be dried in a vacuum drying oven with temperature 60 C.
The coating material of approach described above is isopropanol.
The nitric acid of approach described above is the mixed solution of nitric acid and water under 20ml difference gradient.
The stirring of the middle finished product of approach described above is magnetic agitation 4h, and the hydro-thermal of middle finished product is 140 in air dry oven
DEG C, it is heat-treated 10h.
The chloroplatinic acid solution of approach described above is the quality for the middle finished product that mass ratio is 100:3.
The purple light irradiation time of approach described above is 1h, and rose-red of degrading under xenon lamp simulated solar irradiation.
The purposes of platinum loaded tungsten trioxide composite photo-catalyst, the platinum loaded tungsten trioxide composite photo-catalyst is in xenon lamp
The application for rose-red of degrading under simulated solar irradiation.
The platinum loaded tungsten trioxide composite photo-catalyst is degraded the application of rose-red under xenon lamp simulated solar irradiation.
Platinum loaded tungsten trioxide composite photo-catalyst is applied to degradation rose-red, using 300W xenon lamp as analog light source.
The rose-red concentration is 5mg/L；The dosage of the platinum loaded tungsten trioxide composite photo-catalyst is 0.5g/L.Its photocatalysis is living
Property specific test method are as follows: using 300W xenon lamp as analog light source, take 100ml rose-red to pour into beaker, add Pt/ tungstic acid
Composite photo-catalyst opens magnetic stirring apparatus, balance is secretly adsorbed to, then open xenon lamp vertical irradiation rose-red solution, every one section
Time take a sample, until rose-red is degradable.Finally, measuring sample extinction using ultra-violet and visible spectrophotometer
Degree.
Specific embodiments of the present invention described below, are further described, and not limit this with this
Invention, anyone any simple modification and same modification made to above-mentioned case study on implementation still belong to technology scope of the invention.
Embodiment 1:
The preparation method of tungsten trioxide photocatalyst: the tungstate dihydrate acid sodium of 1.6 mmol and acetate trihydrate lead are dissolved in respectively
In 15ml ultrapure water, acetate trihydrate lead solution is slowly dropped in tungstate dihydrate acid sodium solution, stirs to get uniform mixed liquor,
Then mixed liquor is turned to pour into water heating kettle, is placed on 180 DEG C, 12h of heat treatment in air dry oven, to the end of reacting, water heating kettle is certainly
After being so cooled to room temperature three times with milli-Q water.The nitric acid solution that 20ml volume ratio is 1:5 is added, places under magnetic stirring
4h continues to be 140 DEG C of heat treatment, 10h.
Embodiment 2:
The preparation method of tungsten trioxide photocatalyst: the tungstate dihydrate acid sodium of 1.6 mmol and acetate trihydrate lead are dissolved in respectively
In 15ml ultrapure water, acetate trihydrate lead solution is slowly dropped in tungstate dihydrate acid sodium solution, then is added in acetate trihydrate lead
A certain amount of coating material, and be slowly added dropwise into tungstate dihydrate acid sodium solution, stir to get uniform mixed solution.It will
Mixed liquor pours into water heating kettle, is placed on 180 DEG C, 12h of heat treatment in air dry oven, to the end of reacting, water heating kettle natural cooling
After to room temperature three times with milli-Q water.The nitric acid solution that 20ml volume ratio is 1:5 is added, places 4h under magnetic stirring, after
It is continuous to be 140 DEG C of heat treatment, 10h.
Embodiment 3:
The preparation method of platinum loaded tungsten trioxide composite photo-catalyst: respectively by the tungstate dihydrate acid sodium and acetate trihydrate of 1.6 mmol
Lead is dissolved in 15ml ultrapure water, and acetate trihydrate lead solution is slowly dropped in tungstate dihydrate acid sodium solution, then in acetate trihydrate lead
It is middle that a certain amount of coating material is added, and be slowly added dropwise into tungstate dihydrate acid sodium solution, stir to get uniform mixing
Solution.Mixed liquor is poured into water heating kettle, 180 DEG C, 12h of heat treatment in air dry oven are placed on, to the end of reacting, water heating kettle is certainly
After being so cooled to room temperature three times with milli-Q water.The nitric acid solution that 20ml volume ratio is 1:5 is added, places under magnetic stirring
4h continues to be 140 DEG C of heat treatment, 10h.The chloro-platinic acid of certain volume is added in 100:3 in mass ratio, after be placed under purple lamp and shine
After penetrating a few hours, is respectively washed with ultrapure water and dehydrated alcohol and obtain platinum loaded tungsten trioxide composite photo-catalyst three times.
Application examples:
With 300W xenon lamp simulated solar irradiation, the rose-red of 100ml 5mg/L is taken to pour into beaker, adds three oxidation of 50mg platinum load
Tungsten composite photo-catalyst opens magnetic stirring apparatus, is secretly adsorbed to balance, then open xenon lamp vertical irradiation rose-red solution, and every
2ml is sampled every 10min, until rose-red is degradable.It is centrifuged later to remove the composite photo-catalyst to suspend, uses UV, visible light
Light spectrophotometric determination sample absorbance.
As seen from Figure 5, the degradation property of platinum loaded tungsten trioxide composite photo-catalyst is substantially better than original sample tungstic acid light
Catalyst, and platinum loaded tungsten trioxide composite photo-catalyst can recycled for multiple times.
Claims (9)
1. platinum loaded tungsten trioxide composite photo-catalyst, it is characterised in that: platinum loaded tungsten trioxide composite photo-catalyst is by wolframic acid
Sodium, lead acetate composition, composition ratio 1:1.
2. the preparation method of platinum loaded tungsten trioxide composite photo-catalyst described in claim 1, which is characterized in that its step
Are as follows: (1) the tungstate dihydrate acid sodium of 1.6mmol and acetate trihydrate lead are dissolved in ultrapure water respectively, then are added in acetate trihydrate lead
The coating material of 1ml, and be slowly added dropwise into tungstate dihydrate acid sodium solution, stir to get uniform mixed solution；
(2) mixed liquor is poured into water heating kettle, is put into air dry oven and is heat-treated, to the end of reacting, water heating kettle natural cooling
It is washed repeatedly after to room temperature, obtains first product；
(3) in first product plus 20ml nitric acid solution, stirring, hydro-thermal, washing, dry intermediate products；
(4) it takes 3ml chloroplatinic acid solution to be added in intermediate products, until irradiating a period of time under purple lamp, washs, is so dry that finally to produce
Product.
3. the preparation method of platinum loaded tungsten trioxide composite photo-catalyst according to claim 2, it is characterised in that: described
The molar ratio of tungstate dihydrate acid sodium and acetate trihydrate lead is 1:1, and stirring uses magnetic agitation 10min.
4. the preparation method of platinum loaded tungsten trioxide composite photo-catalyst according to claim 2, it is characterised in that: described
The heat treatment temperature being put into air dry oven is 180 DEG C, and the time is 12h, and washing is respectively washed with ultrapure water and dehydrated alcohol
Three times, drying is to be dried in a vacuum drying oven with temperature 60 C.
5. the preparation method of platinum loaded tungsten trioxide composite photo-catalyst according to claim 2, it is characterised in that: described
Coating material is isopropanol.
6. the preparation method of platinum loaded tungsten trioxide composite photo-catalyst according to claim 2, it is characterised in that nitric acid
It is the mixed solution of nitric acid and water under 20ml difference gradient.
7. the preparation method of platinum loaded tungsten trioxide composite photo-catalyst according to claim 2, it is characterised in that: described
The stirring of middle finished product is magnetic agitation 4h, and the hydro-thermal of middle finished product is to be heat-treated 10h 140 DEG C in air dry oven.
8. the preparation method of platinum loaded tungsten trioxide composite photo-catalyst according to claim 2, it is characterised in that: described
Chloroplatinic acid solution be mass ratio be 100:3 middle finished product quality.
9. the purposes of platinum loaded tungsten trioxide composite photo-catalyst described in claim 1, it is characterised in that: the purple light irradiation
Time is 1h, and application is rose-red of degrading under xenon lamp simulated solar irradiation.
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| CN111871409A (en) * | 2020-09-05 | 2020-11-03 | 兰州理工大学 | Having grain boundaries WO3Preparation method and application of tungstate composite photocatalytic material |
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| GUOLONG GUO ET AL.: "Morphology Control of PbWO4 Crystals in Formamide/Water Solution", 《ADVANCED MATERIALS RESEARCH》 * |
| JIANHUA HUANG ET AL.: "WO3 nanoplates, hierarchical flower-like assemblies and their photocatalytic properties", 《MATERIALS RESEARCH BULLETIN》 * |
| JUNGWON KIM ET AL.: "Platinized WO3 as an Environmental Photocatalyst that Generates OH Radicals under Visible Light", 《ENVIRONMENTAL SCIENCE & TECHNOLOGY》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871409A (en) * | 2020-09-05 | 2020-11-03 | 兰州理工大学 | Having grain boundaries WO3Preparation method and application of tungstate composite photocatalytic material |
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