CN108558230A - Silver oxide tungsten bronze composite heat-insulated material with high visible photocatalysis performance and preparation method thereof - Google Patents
Silver oxide tungsten bronze composite heat-insulated material with high visible photocatalysis performance and preparation method thereof Download PDFInfo
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- CN108558230A CN108558230A CN201810200279.6A CN201810200279A CN108558230A CN 108558230 A CN108558230 A CN 108558230A CN 201810200279 A CN201810200279 A CN 201810200279A CN 108558230 A CN108558230 A CN 108558230A
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- tungsten bronze
- silver oxide
- composite heat
- photocatalysis performance
- dispersion liquid
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- 229910000906 Bronze Inorganic materials 0.000 title claims abstract description 134
- 239000010974 bronze Substances 0.000 title claims abstract description 134
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 239000002131 composite material Substances 0.000 title claims abstract description 78
- 239000000463 material Substances 0.000 title claims abstract description 69
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 62
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 59
- VUQJFUDRDSVDCY-UHFFFAOYSA-N oxotungsten;silver Chemical compound [Ag].[W]=O VUQJFUDRDSVDCY-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims abstract description 117
- 229910001923 silver oxide Inorganic materials 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 239000006185 dispersion Substances 0.000 claims abstract description 54
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 52
- 239000010937 tungsten Substances 0.000 claims abstract description 52
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 44
- CGGMOWIEIMVEMW-UHFFFAOYSA-N potassium tungsten Chemical compound [K].[W] CGGMOWIEIMVEMW-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000243 solution Substances 0.000 claims abstract description 32
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 22
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229940043267 rhodamine b Drugs 0.000 claims abstract description 16
- 239000008367 deionised water Substances 0.000 claims abstract description 15
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 238000006731 degradation reaction Methods 0.000 claims abstract description 9
- 239000012670 alkaline solution Substances 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 230000004044 response Effects 0.000 claims abstract description 5
- 239000011858 nanopowder Substances 0.000 claims abstract description 4
- 230000002459 sustained effect Effects 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 35
- 238000013019 agitation Methods 0.000 claims description 33
- -1 potassium tungsten Copper Chemical compound 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- ZGRBQKWGELDHSV-UHFFFAOYSA-N N.[W+4] Chemical compound N.[W+4] ZGRBQKWGELDHSV-UHFFFAOYSA-N 0.000 claims description 9
- 238000005253 cladding Methods 0.000 claims description 9
- 229910052792 caesium Inorganic materials 0.000 claims description 8
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- LIHHHYMOABTJCZ-UHFFFAOYSA-N [Rb].[W] Chemical compound [Rb].[W] LIHHHYMOABTJCZ-UHFFFAOYSA-N 0.000 claims description 4
- CZIMGECIMULZMS-UHFFFAOYSA-N [W].[Na] Chemical compound [W].[Na] CZIMGECIMULZMS-UHFFFAOYSA-N 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- 239000000908 ammonium hydroxide Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- PNEHEYIOYAJHPI-UHFFFAOYSA-N lithium tungsten Chemical compound [Li].[W] PNEHEYIOYAJHPI-UHFFFAOYSA-N 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 10
- 239000011521 glass Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- 239000003643 water by type Substances 0.000 description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 238000001291 vacuum drying Methods 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000011941 photocatalyst Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000003138 coordinated effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
-
- 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
- B01J23/68—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/683—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum or tungsten
- B01J23/687—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum or tungsten with 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/23—Mixtures
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/71—Photocatalytic coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Catalysts (AREA)
Abstract
The invention discloses the silver oxide tungsten bronze composite heat-insulated materials and preparation method thereof with high visible photocatalysis performance.The silver oxide tungsten bronze composite heat-insulated material by silver oxide and tungsten bronze be combined, silver oxide coat potassium tungsten bronze；It is more than 95% to the degradation rate of rhodamine B in radiation of visible light 30min to the rhodamine B solution of a concentration of 20mg/L under conditions of visible light.When preparation, tungsten bronze nano-powder is scattered in deionized water, ultrasonic disperse obtains dispersion liquid A；Silver nitrate is added in dispersion liquid A, is ultrasonically treated under dark condition, is then stirred under dark condition, tungsten bronze and silver nitrate solution are sufficiently mixed, and obtain dispersion liquid B；It is added dropwise in alkaline solution to dispersion liquid B, control ph, sustained response, washing centrifuge again after completion of dropwise addition, dry.Material of the present invention the utilization ratio for being obviously improved visible light simultaneously, also there is the good transparency, near-infrared shielding properties and heat-proof quality.
Description
Technical field
The present invention relates to a kind of silver oxide tungsten bronze composite heat-insulated material and its system with high visible photocatalysis performance
Preparation Method.
Background technology
With human society and industrial development, people continue to increase the demand of the energy, and traditional energy is such as
Oil, coal are being petered out, and problem of energy crisis is more serious；Meanwhile a large amount of pollutants pair caused by industrial production
The health of the mankind constitutes a threat to, energy saving and environmentally friendly be increasingly valued by people.Glass building, automobile etc. widely
It is applied.On the one hand, simple glass heat-proof quality is poor, and indoor temperature is caused to increase, and brings the waste of the energy, therefore, explores new
The heat-barrier material that type can be used for preparing heat-protecting glass has become the hot spot that researcher studies；On the other hand, simple glass is outstanding
It is formation dirt after the organic matter that building curtain wall glass has adsorbed in air, and surface is dirty.It, which is cleaned, exists such as：Make in high-altitude
Industry is dangerous big；Using a large amount of detergent, the problems such as polluting environment, therefore develop a kind of automatically cleaning can be used for reinforcing glass
The material of ability is current urgent problem.
Tungsten bronze material is a kind of non-stoichiometric compound of tungstenic, chemical formula MXWO3, wherein M is alkali gold
Category, alkaline-earth metal, ammonium ion etc., x is between 0 to 1.There is researcher to find tungsten bronze nano-particle as a kind of in recent years
Near-infrared shielding material can be used for preparing transparent heat insulation diaphragm.Near-infrared shielding properties about tungsten bronze nano-particle is ground
Study carefully existing more report, patent (preparation method and functional membrane of caesium tungsten bronze nano-powder, application number 201410808587.9,
Notification number CN 104528829A, day for announcing 2015.04.22) it discloses a kind of caesium tungsten bronze with near-infrared shielding properties and receives
Rice raw powder's production technology and a kind of function transparent heat-insulating film.
It is one of self-cleaning means using sunlight photocatalysis degradation pollutant, and the quality of photocatalysis performance determines
The power of automatical cleaning ability.Research about tungsten bronze nano-particle and its photocatalysis performance of composite material is actually rare,
Patent (full spectral response type ammonium tungsten bronze # titanium dioxide composite photocatalysts, application number 201610478351.2, notification number CN
106040280A, day for announcing 2016.10.26) a kind of ammonium tungsten bronze composite titanium dioxide photocatalyst is disclosed, with ammonium tungsten bronze
For base material, carried titanium dioxide.But the energy gap of titanium dioxide is larger, in visible light wave range almost without absorption, so
Composite material is relatively low to the utilization rate for accounting for the visible light of sunshine gross energy 43%, under the irradiation of 350w xenon lamps, 0.05g composite powders
The degradation rate of 20mg/L rhodamine Bs a concentration of to 50ml is only 80% in body 2 hours, it is seen that light photocatalysis performance is to be improved.
Invention content
The purpose of the present invention is to provide a kind of simple silver oxide packets with high visible photocatalysis performance easily implemented
Tungsten bronze composite heat-insulated material and preparation method thereof is covered, which has high visible in the utilization ratio for being obviously improved visible light
Light photocatalysis effect also has the good transparency, near-infrared shielding properties and heat-proof quality.
The present invention loads oxidation silver nano-grain on tungsten bronze, is that silver-colored source utilizes silver nitrate in lye with silver nitrate
With alkaline reaction, oxidation silver nano-grain is grown in a manner of heterogeneous nucleation on tungsten bronze, it is dry after centrifugation, it can obtain
To silver oxide/tungsten bronze composite sample, tungsten bronze after modified, utilization ratio, visible light photocatalysis to visible light
Performance is improved significantly.Composite material has the good transparency, near-infrared shielding properties and heat-proof quality simultaneously, can
As a kind of candidate material for preparing automatically cleaning heat-protecting glass film.The method of the present invention is simple for process, easily implements, and has higher
Actual application value.
The present invention promotes the visible light photocatalysis performance of tungsten bronze material, the composite material by semiconductors coupling means
It has a distinct increment compared to photocatalysis performance of the tungsten bronze material in visible-range, while composite material is with good
Bright property, near-infrared shielding properties and heat-proof quality can prepare automatically cleaning heat-protecting glass film.
Silver oxide and tungsten bronze of the present invention form coordinated effect, while photocatalysis performance is obviously improved, also have
Infrared shielding performance and heat-proof quality.The mechanism of promotion is：One side silver oxide is a kind of semi-conducting material, while being also one kind
Catalysis material has narrow energy gap, has stronger absorption in visible light region, can enhance compound rear material to visible light
Absorption, to visible light it is strong absorb be high visible photocatalysis performance premise；Another aspect silver oxide is that a kind of p-type is partly led
Body, tungsten bronze are n-type semiconductors, and the two is compound can to form p-n heterojunction, can efficiently separate light induced electron and hole, make
It is compound after the photocatalysis performance of material be improved.
The object of the invention is realized by the following technical solution：
Silver oxide tungsten bronze composite heat-insulated material with high visible photocatalysis performance：The silver oxide tungsten bronze it is compound every
Hot material is 1 by mass ratio:400~2:1 silver oxide and tungsten bronze is combined, and silver oxide coats potassium tungsten bronze；Visible
It is super to the degradation rate of rhodamine B in radiation of visible light 30min to the rhodamine B solution of a concentration of 20mg/L under conditions of light
Cross 95%.
The preparation method of the silver oxide tungsten bronze composite heat-insulated material with high visible photocatalysis performance, it is special
Sign is to include the following steps：
1) tungsten bronze nano-powder is scattered in deionized water, ultrasonic disperse obtains dispersion liquid A；
2) silver nitrate is added in dispersion liquid A, is ultrasonically treated under dark condition, silver nitrate fully dissolves, then black
It is stirred under dark condition, tungsten bronze and silver nitrate solution are sufficiently mixed, and obtain dispersion liquid B；
3) it is 4-12 to be added dropwise and control the pH value of reaction in the dispersion liquid B obtained by alkaline solution to step 2), after completion of dropwise addition
Sustained response again is washed, and is centrifuged, dry, obtains silver oxide cladding tungsten bronze composite visible light catalysis material.
To further realize the object of the invention, it is preferable that the tungsten bronze nanometer powder is lithium tungsten bronze, sodium tungsten blueness
It is one or more in copper, potassium tungsten bronze, ammonium tungsten bronze, rubidium tungsten bronze and caesium tungsten bronze nanometer powder.
Preferably, the mass ratio of silver nitrate and tungsten bronze is 1 in the dispersion liquid A:400~4:1.
Preferably, the time of the ultrasonic disperse described in step (1) is 10-30min.
Preferably, the alkaline solution is one kind in sodium hydroxide, potassium hydroxide, ammonium hydroxide and urea.
Preferably, a concentration of 0.001mol/L~1mol/L of the alkaline solution.
Preferably, the pH value is 8-12；Step 1) and step 2) ultrasonic disperse or the ultrasonic power of supersound process are
80w；The time of sustained response is 3-20min again after the completion of dropwise addition.
Preferably, the washing is to use deionized water and absolute ethyl alcohol to wash successively repeatedly respectively.
Preferably, the drying is to be dried in vacuo 10-20h at 60 DEG C；The stirring is magnetic agitation.
Compared with prior art, the present invention has the following advantages：The present invention passes through nano oxidized Argent grain and tungsten bronze light
On the one hand catalyst carries out combined processing can significantly improve tungsten to obtain a kind of silver oxide/tungsten bronze composite material
Absorption characteristic and visible light photocatalysis performance of the bronze in visible light region light；On the other hand the material after compound has good
The transparency, near-infrared shielding properties and heat-proof quality, can be as a kind of candidate material for preparing automatically cleaning heat-protecting glass film.
In addition, the preparation method of silver oxide/tungsten bronze composite material of the present invention is simple, it is easy to implement, synthesis condition is mild, and room temperature is normal
Pressure can synthesize, and be conducive to large-scale promotion.
Description of the drawings
Fig. 1 a are the XRD spectrum of the material and potassium tungsten bronze prepared by embodiment 1 and comparative example 1
Fig. 1 b are that silver oxide cladding potassium tungsten bronze composite material sweeps collection of illustrative plates slowly in 30-40 ° of XRD in Fig. 1 a figures.
Fig. 2 is that the scanning electron of the silver oxide cladding potassium tungsten bronze compounded visible light photocatalyst prepared by embodiment 1 is aobvious
Micro mirror figure and energy spectrum diagram.
Fig. 3 is that the silver oxide prepared by embodiment 1 coats potassium tungsten bronze compounded visible light photocatalyst, potassium tungsten bronze material
Photocatalytic Activity for Degradation rhodamine B efficiency chart.
Fig. 4 be using prepared by embodiment 3 silver oxide coat potassium tungsten bronze composite heat-insulated material made from film can
See-near-infrared optical transmission spectra figure.
Fig. 5 be using prepared by embodiment 3 silver oxide coat potassium tungsten bronze composite heat-insulated material made from film every
Hot property figure.
Fig. 6 is the mechanism figure of the visible light photocatalysis performance enhancing of the composite material prepared by the present invention.
Specific implementation mode
To more fully understand the present invention, with reference to embodiment and attached drawing, the invention will be further described, but the present invention
Embodiment it is without being limited thereto.
Embodiment 1
A method of the silver oxide potassium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g potassium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.029g silver nitrate solid particles and is placed in dispersion liquid A, and the mass ratio of potassium tungsten bronze and silver oxide is 10 to 1；
Under dark condition, after being ultrasonically treated 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.01mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 8, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
5min.Then, it is washed respectively 2 times with absolute ethyl alcohol and deionized water, centrifuge and is dried in vacuo 12h at 60 DEG C, had
The silver oxide potassium tungsten bronze composite heat-insulated material of high visible photocatalysis performance.
Embodiment 2
A method of the silver oxide potassium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g potassium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.0097g (mass ratio of potassium tungsten bronze and silver oxide is 30 to 1) silver nitrate solid particle and is placed in dispersion liquid A
In, under dark condition, after ultrasonic 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.01mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 8, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
5min.Then, absolute ethyl alcohol and deionized water are spent to wash respectively 2 times, 12h is dried in vacuo at 60 DEG C and obtains having height visible
The silver oxide potassium tungsten bronze composite heat-insulated material of light photocatalysis performance.
Embodiment 3
A method of the silver oxide potassium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g potassium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.000733g (mass ratio of potassium tungsten bronze and silver oxide is 200 to 1) silver nitrate solid particle and is placed in dispersion liquid
In A, under dark condition, after ultrasonic 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.01mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 8, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
5min.Then, it is washed respectively 2 times with absolute ethyl alcohol and deionized water, 12h is dried in vacuo at 60 DEG C and is obtained with high visible
The silver oxide potassium tungsten bronze composite heat-insulated material of photocatalysis performance.
Embodiment 4
A method of the silver oxide sodium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g sodium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.029g (mass ratio of sodium tungsten bronze and silver oxide is 10 to 1) silver nitrate solid particle and is placed in dispersion liquid A,
Under dark condition, after ultrasonic 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.01mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 6, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
5min.Then, it is washed respectively 2 times with absolute ethyl alcohol and deionized water, centrifuges and vacuum drying 12h obtains having height at 60 DEG C
The silver oxide sodium tungsten bronze composite heat-insulated material of visible light photocatalysis performance.
Embodiment 5
A method of the silver oxide rubidium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g rubidium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.029g (mass ratio of rubidium tungsten bronze and silver oxide is 10 to 1) silver nitrate solid particle and is placed in dispersion liquid A,
Under dark condition, after ultrasonic 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.01mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 12, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
5min.Then, it is washed respectively 2 times with absolute ethyl alcohol and deionized water, centrifuges and vacuum drying 12h obtains having height at 60 DEG C
The silver oxide rubidium tungsten bronze composite heat-insulated material of visible light photocatalysis performance.
Embodiment 6
A method of the silver oxide caesium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g caesium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.029g (mass ratio of caesium tungsten bronze and silver oxide is 10 to 1) silver nitrate solid particle and is placed in dispersion liquid A,
Under dark condition, after ultrasonic 30min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.01mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 8, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
10min.Then, it is washed respectively 2 times with absolute ethyl alcohol and deionized water, centrifuging and being dried in vacuo 12h at 60 DEG C is had
The silver oxide caesium tungsten bronze composite heat-insulated material of high visible photocatalysis performance.
Embodiment 7
A method of the silver oxide ammonium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g ammonium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.029g (mass ratio of ammonium tungsten bronze and silver oxide is 10 to 1) silver nitrate solid particle and is placed in dispersion liquid A,
Under dark condition, after ultrasonic 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.01mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Urea liquid, the pH value for controlling reaction is 8, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation 5min.
Then, it is washed respectively 2 times with absolute ethyl alcohol and deionized water, centrifuges and vacuum drying 12h obtains having height visible at 60 DEG C
The silver oxide ammonium tungsten bronze composite heat-insulated material of light photocatalysis performance.
Embodiment 8
A method of the silver oxide potassium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.4g potassium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.029g (mass ratio of potassium tungsten bronze and silver oxide is 10 to 1) silver nitrate solid particle and is placed in dispersion liquid A,
Under dark condition, after ultrasonic 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.01mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 8, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
5min.Then, it is washed respectively 2 times with absolute ethyl alcohol and deionized water, centrifuges and vacuum drying 12h obtains having height at 60 DEG C
The silver oxide potassium tungsten bronze composite heat-insulated material of visible light photocatalysis performance.
Embodiment 9
A method of the silver oxide potassium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g potassium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.029g (mass ratio of potassium tungsten bronze and silver oxide is 10 to 1) silver nitrate solid particle and is placed in dispersion liquid A,
Under dark condition, after ultrasonic 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.1mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 8, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
10min.Then, it is washed respectively 3 times with absolute ethyl alcohol and deionized water, centrifuging and being dried in vacuo 12h at 60 DEG C is had
The silver oxide potassium tungsten bronze composite heat-insulated material of high visible photocatalysis performance.
Embodiment 10
A method of the silver oxide ammonium tungsten bronze composite heat-insulated material with high visible photocatalysis performance is synthesized, including
Following steps：
(1) it weighs 0.2g ammonium tungsten bronzes to be added in the beaker equipped with 50ml deionized waters, ultrasonic disperse 10min is divided
Dispersion liquid A weighs 0.029g (mass ratio of ammonium tungsten bronze and silver oxide is 10 to 1) silver nitrate solid particle and is placed in dispersion liquid A,
Under dark condition, after ultrasonic 10min, then the magnetic agitation 30min under dark condition, obtain dispersion liquid B.
(2) 0.1mol/L for making silver ion all in solution be converted into silver oxide enough is added into dispersion liquid B dropwise
Sodium hydroxide solution, the pH value for controlling reaction is 8, and while dropwise addition, magnetic agitation after completion of dropwise addition, continues magnetic agitation
5min.Then, it is washed respectively 2 times with absolute ethyl alcohol and deionized water, centrifuges and vacuum drying 12h obtains having height at 60 DEG C
The silver oxide ammonium tungsten bronze composite heat-insulated material of visible light photocatalysis performance.
There is the visible light light of the silver oxide tungsten bronze composite heat-insulated material of high visible photocatalysis performance obtained by embodiment
The test method of catalytic performance, near-infrared shielding properties and heat-proof quality is as follows：
In order to examine silver oxide prepared by the embodiment of the present invention to coat the visible light photocatalysis performance of tungsten bronze composite material,
The experiment of Photocatalytic Activity for Degradation rhodamine B organic dyestuff is carried out to prepared composite material.Weigh each realities of 0.025g
The composite material for applying example preparation, is placed in 250ml beakers, the rhodamine B solution of a concentration of 20mg/L of 50ml is added, in dark
Under the conditions of magnetic agitation 30min to reach adsorption equilibrium.Then, using 300W xenon lamps as visible light source, lamp is opened away from 15cm
Light irradiation rhodamine B solution takes out 2ml solution every 5min from beaker, and prolonged exposure 30min is used in combination agilent company to give birth to
The Cary-60 type ultraviolet-uisible spectrophotometers of production measure the concentration of the rhodamine B solution of different light application times, according to what is measured
The concentration of rhodamine B evaluates the visible light photocatalysis performance of prepared composite material.
The testing procedure of the near-infrared shielding properties of silver oxide cladding tungsten bronze composite material prepared by the present invention is as follows：
Sample to be measured is uniformly mixed according to a certain percentage with coalescents, uniformly scratches the optical glass on piece in 10 × 10cm,
It is spare after vacuum drying 1h at 60 DEG C.Carry out the transmitance of test sample using ultraviolet-visible-near infrared spectrometer, then makes
With following integral formula
Calculate composite material to the rejection rate of near infrared ray.
To examine the silver oxide prepared by the present invention to coat the heat-proof quality of tungsten bronze composite material, using homemade heat-insulated
Device detects.Incubator is bonded by polystyrene plates through polyurethane adhesive, and specification is：20 × 20 × 20cm cubes
The opening of 10 × 10cm is arranged in body at the top center of babinet.
Heat-proof quality test the step of be：Sample to be measured is uniformly mixed according to a certain percentage with coalescents, uniformly
The optical glass on piece in 10 × 10cm is scratched, it is spare after vacuum drying 1h at 60 DEG C.Sheet glass to be measured is placed in incubator
At the central opening of top, it will be coated with the face-up of sample, digital display thermometer is placed in inside incubator.Made using the infrared lamp of 100w
For light source, the upper surface center 45cm of the lower surface of infrared lamp apart from incubator.Room temperature is kept constant, while opening infrared lamp
Begin to use manual time-keeping, record heat preservation the temperature inside the box, experimental period 90min per 5min.
Fig. 1 a are the XRD spectrums of the material and potassium tungsten bronze prepared by embodiment 1 and comparative example 1, and the instrument used is lotus
X ' Pert PRO type the X-ray diffractometers of blue Panaco company, using Cu targets KαRay.E, f, g collection of illustrative plates correspond to potassium respectively in figure
The X ray diffracting spectrum of tungsten bronze, comparative example 2, material prepared by embodiment 1, can obtain, embodiment 1 is made from figure
Mutually basic and potassium tungsten bronze object matches the object of standby material, and there are one additional relatively short peak, Fig. 1 b at 38.067 °
It is that silver oxide cladding potassium tungsten bronze composite material sweeps collection of illustrative plates slowly in 30-40 ° of XRD in Fig. 1 a figures, can obviously observes
38.067 ° there are one peaks, belong to corresponding to silver oxide (200) crystal face that card number is 00-041-1104 through comparing the peak
Peak.
Fig. 2 is the SEM spectrum and energy spectrum diagram of the composite material prepared by embodiment 1, and instrument used is Nova Nano public
Take charge of the SEM430 type ultrahigh resolution field emission microscope,s of production.As can be seen from the figure：Potassium tungsten bronze is long rodlike, material group
There are silver elements in.
Fig. 3 is that the silver oxide prepared by embodiment 1 coats potassium tungsten bronze composite material and potassium tungsten bronze in visible light (wavelength
Range 420-780nm) under irradiation to the rhodamine B photocatalytic degradation curve graph of 20mg/L.It can be seen from the figure that embodiment 1
Prepared potassium tungsten bronze and silver oxide mass ratio is 10:1 silver oxide coats potassium tungsten bronze composite material in radiation of visible light
It is more than 95% to the degradation rate of rhodamine B after 30min.And potassium tungsten bronze after radiation of visible light 30min to the degradation of rhodamine B
Rate is only 9%.So the visible light photocatalysis performance of the composite material on potassium tungsten bronze after load oxidation silver nano-grain is aobvious
It writes and is promoted.
Fig. 4 be respectively by obtained by embodiment 3 silver oxide cladding potassium tungsten bronze composite material and potassium tungsten bronze prepare
Transmitance of the film in 380-2500nm wave-length coverages.It can be seen from the figure that being prepared by the composite material of 3 gained of embodiment
Film be more than 70% to the shielding rate of near infrared ray.
Fig. 5 be respectively by obtained by embodiment 3 silver oxide cladding potassium tungsten bronze composite material and potassium tungsten bronze prepare
The heat-proof quality test result figure of film.It can be seen from the figure that the film phase prepared by the composite material obtained by embodiment 3
Than reducing 5.7 DEG C in the film temperature for being not added with material.
Fig. 6 is the mechanism figure of the visible light photocatalysis performance enhancing of the composite material prepared by the present invention, it can be seen from the graph that
Silver oxide is p-type semiconductor, and energy gap 1.4eV has strong absorption to visible light, is coated on tungsten bronze surface energy and effectively increases
For strong composite material to the absorbability of visible light, the strong absorbability to visible light is the premise of high visible photocatalytic activity；
Meanwhile tungsten bronze is n-type semiconductor, energy gap is close to 2.5eV, and after tungsten bronze surface coats silver oxide, the two is formed
P-n heterojunction, silver oxide and tungsten bronze can generate light induced electron and hole under the irradiation of visible light, lead due to two and half
Valence band, the conduction band difference of body itself so that after the two is compound, light induced electron can be transferred to from silver oxide on tungsten bronze, photoproduction
Hole can be transferred to from tungsten bronze on silver oxide, realize the separation in light induced electron and hole, so that visible light photocatalysis
Performance is significantly improved.
There is the silver oxide tungsten bronze composite heat-insulated material of high visible photocatalysis performance obtained by different embodiments of the invention
Visible light photocatalysis performance, near-infrared shielding properties and heat-proof quality test result and above-described embodiment 1 and embodiment 3 it is basic
It is identical, it does not provide one by one.All embodiment resulting materials are under the visible light source irradiation of 300W to the drop of rhodamine B in 30min
Solution rate is above 95%, and film obtained is more than 70% to the rejection rate of near infrared light, compared to the film for being not added with the product
Temperature reduces 5.7 DEG C or more.
From the test result and attached drawing of above-described embodiment as it can be seen that the present invention synthesizes silver oxide cladding at normal temperatures and pressures
Tungsten bronze composite material, building-up process are simply easily implemented.The present invention improves utilization ratio of the tungsten bronze to visible light simultaneously, obtains
The composite material with high visible photocatalysis effect is arrived, which also has the good transparency, near-infrared shielding
Performance and heat-proof quality, the material can be used for preparing automatically cleaning heat-protecting glass film, have fabulous application prospect.
Above example is not intended to limit the technical solutions of the present invention in any form, every skill according to the present invention
Art essence still falls within technical scheme of the present invention to any simple modification, equivalent change and modification made by above example
In the range of.
Claims (10)
1. the silver oxide tungsten bronze composite heat-insulated material with high visible photocatalysis performance, it is characterised in that：The silver oxide tungsten
Bronze composite heat-insulated material is 1 by mass ratio:400~2:1 silver oxide and tungsten bronze is combined, and it is green that silver oxide coats potassium tungsten
Copper；Under conditions of visible light, to the rhodamine B solution of a concentration of 20mg/L, to rhodamine B in radiation of visible light 30min
Degradation rate be more than 95%.
2. the preparation side of the silver oxide tungsten bronze composite heat-insulated material described in claim 1 with high visible photocatalysis performance
Method, it is characterised in that include the following steps：
1) tungsten bronze nano-powder is scattered in deionized water, ultrasonic disperse obtains dispersion liquid A；
2) silver nitrate is added in dispersion liquid A, is ultrasonically treated under dark condition, silver nitrate fully dissolves, then in dark item
It is stirred under part, tungsten bronze and silver nitrate solution are sufficiently mixed, and obtain dispersion liquid B；
3) it is 4-12 to be added dropwise and control the pH value of reaction in the dispersion liquid B obtained by alkaline solution to step 2), is held again after completion of dropwise addition
Continuous reaction, is washed, and is centrifuged, dry, obtains silver oxide cladding tungsten bronze composite visible light catalysis material.
3. the system of the silver oxide tungsten bronze composite heat-insulated material according to claim 2 with high visible photocatalysis performance
Preparation Method, it is characterised in that：The tungsten bronze nanometer powder be lithium tungsten bronze, sodium tungsten bronze, potassium tungsten bronze, ammonium tungsten bronze,
It is one or more in rubidium tungsten bronze and caesium tungsten bronze nanometer powder.
4. the system of the silver oxide tungsten bronze composite heat-insulated material according to claim 2 with high visible photocatalysis performance
Preparation Method, it is characterised in that：The mass ratio of silver nitrate and tungsten bronze is 1 in the dispersion liquid A:400~4:1.
5. the system of the silver oxide tungsten bronze composite heat-insulated material according to claim 2 with high visible photocatalysis performance
Preparation Method, it is characterised in that：The time of ultrasonic disperse described in step (1) is 10-30min.
6. the system of the silver oxide tungsten bronze composite heat-insulated material according to claim 2 with high visible photocatalysis performance
Preparation Method, it is characterised in that：The alkaline solution is one kind in sodium hydroxide, potassium hydroxide, ammonium hydroxide and urea.
7. the system of the silver oxide tungsten bronze composite heat-insulated material according to claim 2 with high visible photocatalysis performance
Preparation Method, it is characterised in that：A concentration of 0.001mol/L~1mol/L of the alkaline solution.
8. the system of the silver oxide tungsten bronze composite heat-insulated material according to claim 2 with high visible photocatalysis performance
Preparation Method, it is characterised in that：The pH value is 8-12；The ultrasonic power of step 1) and step 2) ultrasonic disperse or supersound process
For 80w；The time of sustained response is 3-20min again after the completion of dropwise addition.
9. the system of the silver oxide tungsten bronze composite heat-insulated material according to claim 2 with high visible photocatalysis performance
Preparation Method, it is characterised in that：The washing is to use deionized water and absolute ethyl alcohol to wash successively repeatedly respectively.
10. the silver oxide tungsten bronze composite heat-insulated material according to claim 2 with high visible photocatalysis performance
Preparation method, it is characterised in that：The drying is to be dried in vacuo 10-20h at 60 DEG C；The stirring is magnetic agitation.
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| CN112299484A (en) * | 2019-07-31 | 2021-02-02 | 北京信息科技大学 | Method for preparing cesium tungsten bronze material under normal pressure |
| CN113199022A (en) * | 2021-04-14 | 2021-08-03 | 华南理工大学 | Fluorine-doped ammonium tungsten bronze/gold nanorod composite near-infrared shielding material and preparation method thereof |
| CN115557529A (en) * | 2022-09-29 | 2023-01-03 | 江西东鹏新材料有限责任公司 | Cadmium sulfide-coated rubidium-tungsten bronze composite nano powder and preparation method and application thereof |
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