CN110252280A - A kind of BiSnSbO6Powder catalytic material and BiSnSbO6-TiO2Composite photocatalyst material - Google Patents
A kind of BiSnSbO6Powder catalytic material and BiSnSbO6-TiO2Composite photocatalyst material Download PDFInfo
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- CN110252280A CN110252280A CN201910596668.XA CN201910596668A CN110252280A CN 110252280 A CN110252280 A CN 110252280A CN 201910596668 A CN201910596668 A CN 201910596668A CN 110252280 A CN110252280 A CN 110252280A
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- 239000000463 material Substances 0.000 title claims abstract description 91
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 38
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 35
- 239000003054 catalyst Substances 0.000 claims abstract description 92
- 239000000843 powder Substances 0.000 claims abstract description 64
- 239000002131 composite material Substances 0.000 claims abstract description 46
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000002360 preparation method Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 239000013078 crystal Substances 0.000 claims description 53
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 claims description 43
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 34
- 239000002351 wastewater Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 22
- 230000000593 degrading effect Effects 0.000 claims description 20
- 239000002243 precursor Substances 0.000 claims description 20
- 229910002651 NO3 Inorganic materials 0.000 claims description 16
- KKKAMDZVMJEEHQ-UHFFFAOYSA-N [Sn].[N+](=O)(O)[O-] Chemical compound [Sn].[N+](=O)(O)[O-] KKKAMDZVMJEEHQ-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims description 12
- 239000011259 mixed solution Substances 0.000 claims description 12
- 238000013019 agitation Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- FAPDDOBMIUGHIN-UHFFFAOYSA-K antimony trichloride Chemical compound Cl[Sb](Cl)Cl FAPDDOBMIUGHIN-UHFFFAOYSA-K 0.000 claims description 6
- VMPVEPPRYRXYNP-UHFFFAOYSA-I antimony(5+);pentachloride Chemical compound Cl[Sb](Cl)(Cl)(Cl)Cl VMPVEPPRYRXYNP-UHFFFAOYSA-I 0.000 claims description 6
- 150000001768 cations Chemical class 0.000 claims description 6
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 claims description 5
- 231100000719 pollutant Toxicity 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 239000002957 persistent organic pollutant Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 abstract description 39
- 238000006731 degradation reaction Methods 0.000 abstract description 39
- 239000000356 contaminant Substances 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 34
- 229910052799 carbon Inorganic materials 0.000 description 34
- 238000005286 illumination Methods 0.000 description 18
- 239000007864 aqueous solution Substances 0.000 description 16
- 230000033558 biomineral tissue development Effects 0.000 description 12
- 230000005855 radiation Effects 0.000 description 9
- 238000005273 aeration Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 229910052724 xenon Inorganic materials 0.000 description 6
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000001699 photocatalysis Effects 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 229910003074 TiCl4 Inorganic materials 0.000 description 4
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 238000003991 Rietveld refinement Methods 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- ZXJXZNDDNMQXFV-UHFFFAOYSA-M crystal violet Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1[C+](C=1C=CC(=CC=1)N(C)C)C1=CC=C(N(C)C)C=C1 ZXJXZNDDNMQXFV-UHFFFAOYSA-M 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003403 water pollutant Substances 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/18—Arsenic, antimony or bismuth
-
- B01J35/39—
-
- B01J35/61—
-
- 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
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- 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
-
- 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
- C02F2101/306—Pesticides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
- C02F2101/40—Organic compounds containing sulfur
-
- 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
Abstract
The invention discloses a kind of efficient powder catalytic material BiSnSbO6And the BiSnSbO based on dusty material preparation6‑TiO2Composite photocatalyst material, and disclose preparation method and related application.The present invention method compound by using four kinds of metallic elements, it prepares the compound effective catalyst of three kinds of novel metallic elements of one kind and based on composite photocatalyst material made from the catalyst, there is very high application value and promotional value in terms of degradation of contaminant.
Description
Technical field
The present invention relates to environmental technology field, more particularly to a kind of powder catalytic material, composite photocatalyst material
Material and its preparation and application.
Background technique
Currently, environmental problem has become a major issue of Chinese government's concern, wherein water pollution problems more people
It is of interest.Industrial production is one of main source of water pollutant, and many polluters are difficult to biodegrade, toxicity
Greatly, and complicated component has the mutagenic harm of carcinogenic teratogenesis.Therefore, there is an urgent need to a kind of environmentally protective and have market application
The processing technique of value solves the problems, such as water environment pollution.
For traditional biological treatment and physicochemical treatment method since degradation cycle is long, degradation efficiency is low, it is with high costs with
And there may be the factors such as secondary pollution to be difficult to adapt in increasingly complicated water body environment pollution object.And as high-level oxidation technology
One kind-photocatalysis oxidation technique, high-efficient due to its degradation of contaminant, speed is fast, and applicability is wide, it is without secondary pollution and
The advantages that motive force of its degradation of contaminant derives from solar energy, and operating cost is cheap has huge market application potential, at
To solve the most strong means of water pollution problems at present.
TiO2It is photochemical catalyst most widely used currently on the market, but due to its greater band gap, the purple shorter to wavelength
Outer light generates response, can only utilize in sunlight about 4% ultraviolet portion, low to the utilization efficiency of solar energy, and TiO2
Particle is smaller, is not readily separated and reuse, to limit its development.
Therefore a kind of novel visible-light photocatalysis material is developed, the utilization efficiency for improving the sun and material are to pollutant
Degradation efficiency, be those skilled in the art's urgent problem to be solved.
Summary of the invention
In view of this, the present invention provides a kind of powder catalytic material, compound porous nano catalytic material and its preparation with
Using powder catalytic material BiSnSbO prepared by the present invention6With composite photocatalyst material BiSnSbO6-TiO2, under visible light
The organic pollutant in water is handled, removal effect is preferable, shows good development prospect.
To achieve the goals above, the present invention adopts the following technical scheme:
The invention discloses a kind of preparation method of powder catalytic material, the powder catalytic material is BiSnSbO6Powder
Catalysis material, the preparation method is that water-solvent-thermal method, includes the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5The ratio of]=1:1:1
It weighs powder to be then dissolved in water, stirs, obtain mixed solution;
2) mixed solution in the step 1) is transferred in reaction kettle and is sealed, 150 DEG C of constant temperature are stood for 24 hours, rear chamber
Temperature is cooling;
3) product obtained in the step 2) is filtered, is respectively washed 3 times with water and dehydrated alcohol, vacuum at 50-80 DEG C
Dry 5-6h, grinding obtain catalyst BiSnSbO6。
It the invention discloses a kind of preparation method of powder catalytic material, the preparation method or is complex precursors
Method, the complex precursors method include the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5The ratio of]=1:1:1
Weigh powder, later with organic-fuel citric acid (C6H8O7) be put into togerther in beaker, addition deionized water, magnetic agitation, then
It stands at room temperature for 24 hours, so that metal cation and citric acid is formed complex, obtain precursor solution;
2) precursor solution in the step 1), with clad steel silk screen sealed beaker mouth, later will as in beaker
Beaker is placed in constant temperature 30min in 200 DEG C of Muffle furnace, and the solution that then 3 DEG C/min is warming up to that 300 DEG C make in beaker sufficiently fires
It burns, obtains combustion product;
3) product obtained in the step 2) is annealed 6h at 1000 DEG C, after natural cooling, sample is ground, is obtained
BiSnSbO6Fine catalyst, kept dry.
The invention discloses a kind of powder catalytic material that powder catalytic material preparation method obtains, the powder catalytic materials
Material is single-phase BiSnSbO6Powder catalyst material, the average-size of particle are 720-770nm.
The invention discloses a kind of application of powder catalytic material in waste water, the powder catalyst material is
BiSnSbO6Powder catalytic material, the application in waste water are the crystal violet in degrading waste water, Rogor organic pollutant.
The invention discloses a kind of preparation method of composite photocatalyst material, the composite photocatalyst material is
BiSnSbO6-TiO2Composite photocatalyst material, the preparation method is that water-solvent-thermal method, includes the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5]: titanium tetrachloride
[TiCl4The ratio of]=1:1:1:3 weighs powder and is then dissolved in water, and stirring obtains mixed solution;
2) mixed solution in the step 1) is transferred in reaction kettle and is sealed, 150 DEG C of constant temperature are stood for 24 hours, rear chamber
Temperature is cooling;
3) product obtained in the step 2) is filtered, is respectively washed 3 times with water and dehydrated alcohol, is dried in vacuo at 60 DEG C
6h, grinding obtain catalyst BiSnSbO6-TiO2。
The invention discloses a kind of preparation method of composite photocatalyst material, the preparation method or be complex precursors
Method, the complex precursors method include the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5]: titanium tetrachloride
[TiCl4The ratio of]=1:1:1:3 weighs powder, later with organic-fuel citric acid (C6H8O7) be put into togerther in beaker, it is added
Then deionized water, magnetic agitation are stood for 24 hours at room temperature, so that metal cation and citric acid is formed complex, it is molten to obtain presoma
Liquid;
2) precursor solution in the step 1), with clad steel silk screen sealed beaker mouth, later will as in beaker
Beaker is placed in constant temperature 30min in 200 DEG C of Muffle furnace, and the solution that then 3 DEG C/min is warming up to that 300 DEG C make in beaker sufficiently fires
It burns, obtains combustion product;
3) product obtained in the step 2) is annealed 6h at 1000 DEG C, after natural cooling, sample is ground, is obtained
BiSnSbO6-TiO2Powder composite catalyst, kept dry.
The invention discloses a kind of composite photocatalyst material, the composite photocatalyst material is single-phase BiSnSbO6-TiO2It is multiple
Light combination catalysis material.
The invention discloses a kind of application of composite photocatalyst material in waste water, the composite photocatalyst material is
BiSnSbO6-TiO2Composite photocatalyst material, the application in waste water are the crystal violet in degrading waste water, Rogor organic contamination
Object.
Compared with prior art, the present invention is successfully prepared powder catalytic material BiSnSbO by the above method6Or
BiSnSbO6-TiO2, and make the crystal violet being used in pollution degradation waste water, Rogor, with good catalytic performance.It is first
The catalyst of first pulverulence improves the specific surface area of catalyst, increases the contact area with pollutant.Secondly will
BiSnSbO6And TiO2Nano composite photo-catalyst is constructed, the specific surface area of fine catalyst is further improved, gives full play to
TiO2Excellent absorption property and high specific surface area, and then increase the reactivity site of catalyst surface.To sum up, this is urged
Agent has excellent visible light activity and the good adsorption ability to pollutant, and which greatly improves the visible lights of catalyst
The degradation efficiency of utilization efficiency and pollutant.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is the powder catalytic material BiSnSbO that the present invention is prepared6-TiO2Electron-microscope scanning figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
A kind of preparation method of powder catalytic material, powder catalytic material are BiSnSbO6Powder catalytic material, preparation side
Method is water-solvent-thermal method, is included the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5The ratio of]=1:1:1
It weighs powder to be then dissolved in water, stirs, obtain mixed solution;
2) mixed solution in the step 1) is transferred in reaction kettle and is sealed, 150 DEG C of constant temperature are stood for 24 hours, rear chamber
Temperature is cooling;
3) product obtained in the step 2) is filtered, is respectively washed 3 times with water and dehydrated alcohol, is dried in vacuo at 60 DEG C
6h, grinding obtain catalyst BiSnSbO6。
Embodiment 2:
A kind of preparation method of powder catalytic material, preparation method are complex precursors method, are included the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5The ratio of]=1:1:1
Weigh powder, later with organic-fuel citric acid (C6H8O7) be put into togerther in beaker, addition deionized water, magnetic agitation, then
It stands at room temperature for 24 hours, so that metal cation and citric acid is formed complex, obtain precursor solution;
2) precursor solution in the step 1), with clad steel silk screen sealed beaker mouth, later will as in beaker
Beaker is placed in constant temperature 30min in 200 DEG C of Muffle furnace, and the solution that then 3 DEG C/min is warming up to that 300 DEG C make in beaker sufficiently fires
It burns, obtains combustion product;
3) product obtained in the step 2) is annealed 6h at 1000 DEG C, after natural cooling, sample is ground, is obtained
BiSnSbO6Fine catalyst, kept dry.
Embodiment 3:
A kind of preparation method of composite photocatalyst material, composite photocatalyst material BiSnSbO6-TiO2Composite photocatalyst material
Material, preparation method are water-solvent-thermal method, are included the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5]: titanium tetrachloride
[TiCl4The ratio of]=1:1:1:3 weighs powder and is then dissolved in water, and stirring obtains mixed solution;
2) mixed solution in the step 1) is transferred in reaction kettle and is sealed, 150 DEG C of constant temperature are stood for 24 hours, rear chamber
Temperature is cooling;
3) product obtained in the step 2) is filtered, is respectively washed 3 times with water and dehydrated alcohol, is dried in vacuo at 60 DEG C
6h, grinding obtain catalyst BiSnSbO6-TiO2。
Embodiment 4:
A kind of preparation method of composite photocatalyst material, preparation method are complex precursors method, the complex forerunner
Body method includes the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5]: titanium tetrachloride
[TiCl4The ratio of]=1:1:1:3 weighs powder, later with organic-fuel citric acid (C6H8O7) be put into togerther in beaker, it is added
Then deionized water, magnetic agitation are stood for 24 hours at room temperature, so that metal cation and citric acid is formed complex, it is molten to obtain presoma
Liquid;
2) precursor solution in the step 1), with clad steel silk screen sealed beaker mouth, later will as in beaker
Beaker is placed in constant temperature 30min in 200 DEG C of Muffle furnace, and the solution that then 3 DEG C/min is warming up to that 300 DEG C make in beaker sufficiently fires
It burns, obtains combustion product;
3) product obtained in the step 2) is annealed 6h at 1000 DEG C, after natural cooling, sample is ground, is obtained
BiSnSbO6-TiO2Powder composite catalyst, kept dry.
The material for preparing above-described embodiment 1-4 in the present invention is applied in wastewater treatment, specific as follows:
One, BiSnSbO6Powder catalytic material
BiSnSbO6The performance characterization of powder catalytic material
BiSnSbO is prepared with embodiment 26Powder catalytic material is detected.
Original material high purity is tested, it can by the data result of X ray diffracting spectrum and x-ray photoelectron spectroscopy
Know, BiSnSbO6To be single-phase, no any impurity phase.By the map of transmission electron microscope it is observed that the pattern of catalyst more
Rule, BiSnSbO6The average-size of particle is about 750nm.Xray fluorescence spectrometer measures catalyst BiSnSbO6Average original
Sub- molar percentage is Bi:Sn:Sb:O=1.00:0.98:0.97:5.97.With Rietveld method to BiSnSbO6X-ray
Diffracting spectrum result carries out structure refinement, structure refinement factor R p=9.62%.BiSnSbO6Structure be pyrochlore constitution, it is vertical
Prismatic crystal system, space group Fd3m, cell parameter are a=10.23459 angstroms.BiSnSbO6The indices of crystallographic plane (hk1) quilt of each diffraction maximum
Calibration.BiSnSbO6The space position parameter of each atom is determined in catalyst.Using UV-vis DRS spectrometer pair
BiSnSbO6The characteristic absorption side generated under the irradiation of light is measured, and obtains BiSnSbO6Bandwidth be 2.83eV.It urges
Agent BiSnSbO6X-ray photoelectron spectroscopy by x-ray photoelectron spectroscopy measure (being shown in Table 1), as shown in Table 1 Bi, Sn,
The chemical valence of Sb, O are respectively+3 ,+4 ,+5, -2, while obtaining BiSnSbO6Band structure and density of electronic states, conduction band is by Bi
6p track, the 5p track of Sn, Sb 5p track composition;Valence band is made of the 6s track of Bi and the 2p track of O.
1 BiSnSbO of table6X-ray photoelectron spectroscopy in each element combination energy peak value (eV)
Two, the crystal violet (C in degrading waste water25H30N3Cl·9H2O)
1, using powder photocatalytic material BiSnSbO6Crystal violet (C in degrading waste water25H30N3Cl·9H2O)
By the BiSnSbO of 1.2g6Fine catalyst is put into 500mL crystal violet aqueous solution and forms suspension system, crystal violet
The initial concentration of aqueous solution is 0.04mmol/L, initial pH value 7.Crystal violet solution is irradiated using the xenon lamp of 500W, mixes and cuts
To optical filter (λ > 420nm).Incident light intensity of illumination is 4.76x10-6Einstein L-1s-1.Magnetic force is used in experimentation
It is in suspended state that the mode of stirring and oxygenic aeration maintains catalyst fines in aqueous solution.Entire illumination reaction is closed impermeable
It is carried out under the environment of light.The experimental results showed that with BiSnSbO6Under visible light illumination for catalyst, prolonging with irradiation time
Long, the concentration of crystal violet gradually decreases, and total organic carbon (TOC) concentration is gradually lowered, by 310min, the removal rate of crystal violet
It is 93.95%, the removal rate (mineralization rate) of total organic carbon TOC is up to 89.33%, CO2Yield be 0.44126mmol, crystal violet
First order kinetic constant Kc with the time is 0.00649min-1, the First order kinetic constant K of total organic carbon and timeTOCFor
0.00514min-1.Detailed data are shown in Table 2.
Table 2 is with BiSnSbO6Powder is catalyst degradation crystal violet related data obtained
2, using BiSnSbO6-TiO2Crystal violet (C in composite photocatalyst material degrading waste water25H30N3Cl·9H2O)
By the BiSnSbO of 1.2g6-TiO2Composite photocatalyst material is put into 500mL crystal violet aqueous solution and forms suspended substance
System, the initial concentration of crystal violet aqueous solution are 0.04mmol/L, initial pH value 7.It is molten using the xenon lamp irradiation crystal violet of 500W
Liquid is mixed by optical filter (λ > 420nm).Incident light intensity of illumination is 4.76x10-6Einstein L-1s-1.In experimentation
Maintain catalyst fines using the mode of magnetic agitation and oxygenic aeration is in suspended state in aqueous solution.Entire illumination reaction exists
It is carried out under closed opaque environment.The experimental results showed that with BiSnSbO6-TiO2Composite photocatalyst material is in radiation of visible light
Under, as the irradiation time increases, the concentration of crystal violet gradually decreases, and total organic carbon (TOC) concentration is gradually lowered, and passes through
290min, the removal rate of crystal violet are 100%, and the removal rate (mineralization rate) of total organic carbon TOC is up to 96.75%, CO2Yield be
The First order kinetic constant Kc of 0.48129mmol, crystal violet and time are 0.00866min-1, the level-one of total organic carbon and time
Kinetic constant KTOCFor 0.00831min-1.Detailed data are shown in Table 3.
Table 3 is with BiSnSbO6-TiO2Composite photocatalyst material is catalyst degradation crystal violet related data obtained
3, using powder photocatalytic material Bi2WO6Crystal violet (C in degrading waste water25H30N3Cl·9H2O)
By the Bi of 1.2g2WO6Fine catalyst is put into 500mL crystal violet aqueous solution and forms suspension system, and crystal violet is water-soluble
The initial concentration of liquid is 0.04mmol/L, initial pH value 7.Crystal violet solution is irradiated using the xenon lamp of 500W, is mixed by filter
Mating plate (λ > 420nm).Incident light intensity of illumination is 4.76x10-6Einstein L-1s-1.Magnetic agitation is used in experimentation
Maintain catalyst fines with the mode of oxygenic aeration is in suspended state in aqueous solution.Entire illumination reaction is closed lighttight
It is carried out under environment.Experimental result surface is with Bi2WO6Under visible light illumination for catalyst, as the irradiation time increases, it crystallizes
Purple concentration gradually decreases, and total organic carbon (TOC) concentration is gradually lowered, and by 310min, the removal rate of crystal violet is
The removal rate (mineralization rate) of 58.20%, total organic carbon TOC are up to 52.73%, CO2Yield be 0.26105mmol, crystal violet with
The First order kinetic constant Kc of time is 0.00358min-1, the First order kinetic constant K of total organic carbon and timeTOCFor
0.00302min-1.Detailed data are shown in Table 4.
Table 4 is with Bi2WO6Powder is catalyst degradation crystal violet related data obtained
By using the crystal violet (C in above-mentioned three kinds different catalyst degradation waste water25H30N3Cl·9H2O), specific right
Than being analyzed as follows:
(1) it is utilized respectively BiSnSbO6And Bi2WO6Powder is the performance comparison of catalyst degradation crystal violet
Under the premise of primary condition is consistent, Bi is utilized2WO6The fine catalyst crystallization in degrading waste water under visible light
Purple, in radiation of visible light 200min, the removal rate of crystal violet is 33.18%, and the removal rate (mineralization rate) of total organic carbon TOC reaches
25.35%;When irradiating 310min under visible light, crystal violet is not completely degraded also, and the degradation rate of crystal violet only reaches
58.20%, the removal rate of total organic carbon TOC has only reached 52.73%, CO2Yield be 0.26105mmol.
And under identical primary condition, utilize BiSnSbO6The fine catalyst crystallization in degrading waste water under visible light
Purple, in radiation of visible light 310min, the removal rate of crystal violet is 93.95%, and the removal rate (mineralization rate) of total organic carbon TOC reaches
89.33%, CO2Yield be 0.44126mmol, be much higher than Bi2WO6CO when fine catalyst degradation crystal violet2Yield.?
By comparing BiSnSbO6And Bi2WO6The first order kinetics of the removal rate of fine catalyst degradation crystal violet and total organic carbon TOC
Constant, it can be clearly seen that, utilize BiSnSbO6The First order kinetic constant that fine catalyst obtains is than utilizing Bi2WO6Powder
The First order kinetic constant that catalyst obtains is much higher, it can be seen that BiSnSbO6The rate of fine catalyst degradation crystal violet is remote
Greater than Bi2WO6Fine catalyst.
In conclusion photocatalytic degradation removes the crystal violet in water removal, BiSnSbO under identical primary condition6Powder catalytic
Agent ratio Bi2WO6Fine catalyst performance is good, high-efficient, degradation speed is fast.
(2) it is utilized respectively BiSnSbO6-TiO2And Bi2WO6Powder is the performance comparison of catalyst degradation crystal violet
Under the premise of primary condition is consistent, Bi is utilized2WO6The fine catalyst crystallization in degrading waste water under visible light
Purple, in radiation of visible light 200min, the removal rate of crystal violet is 33.18%, and the removal rate (mineralization rate) of total organic carbon TOC reaches
25.35%;When irradiating 310min under visible light, crystal violet is not completely degraded also, and the degradation rate of crystal violet only reaches
58.20%, the removal rate of total organic carbon TOC has only reached 52.73%, CO2Yield be 0.26105mmol.
And under identical primary condition, utilize BiSnSbO6-TiO2The composite catalyst knot in degrading waste water under visible light
Crystalviolet, in radiation of visible light 290min, crystal violet has just been completely removed, and total organic Carbon removal reaches at this time
96.75%, CO at this time2Yield be 0.48129mmol, be much higher than Bi2WO6CO when fine catalyst degradation crystal violet2Production
Amount.Pass through comparison BiSnSbO again6-TiO2Composite catalyst and Bi2WO6Fine catalyst degradation crystal violet and total organic carbon TOC
Removal rate First order kinetic constant, it can be clearly seen that come, utilize BiSnSbO6-TiO2The level-one that composite catalyst obtains
Kinetic constant is than utilizing Bi2WO6The First order kinetic constant that fine catalyst obtains is much higher, it can be seen that BiSnSbO6-
TiO2The rate of composite catalyst degradation crystal violet is much larger than Bi2WO6Fine catalyst.
In conclusion photocatalytic degradation removes the crystal violet in water removal, BiSnSbO under identical primary condition6-TiO2It is compound
Catalyst ratio Bi2WO6Fine catalyst performance is good, high-efficient, degradation speed is fast.
Three, the Rogor (C in degrading waste water25H30N3Cl·9H2O)
1, with powder photocatalytic material BiSnSbO6Rogor (C in degrading waste water5H12NO3PS2)
By the BiSnSbO of 1.2g6Fine catalyst is put into 500mL Rogor aqueous solution and forms suspension system, and Rogor is water-soluble
The initial concentration of liquid is 0.04mmol/L, initial pH value 7.Rogor solution is irradiated using the xenon lamp of 500W, is mixed by optical filtering
Piece (λ > 420nm).Incident light intensity of illumination is 4.76x10-6Einstein L-1s-1.In experimentation using magnetic agitation and
It is in suspended state that the mode of oxygenic aeration maintains catalyst fines in aqueous solution.Entire illumination reaction is in closed lighttight ring
It is carried out under border.Experimental result surface is with BiSnSbO6Under visible light illumination for catalyst, as the irradiation time increases, Rogor
Concentration gradually decrease, total organic carbon (TOC) concentration is gradually lowered, and by 310min, the removal rate of Rogor is 91.03%,
The removal rate (mineralization rate) of total organic carbon TOC is up to 82.29%, CO2Yield be 0.08014mmol, the one of crystal violet and time
Grade kinetic constant Kc is 0.00569min-1, the First order kinetic constant K of total organic carbon and timeTOCFor 0.00406min-1。
Detailed data are shown in Table 5.
Table 5 is with BiSnSbO6Powder is catalyst degradation Rogor related data obtained
2, using BiSnSbO6-TiO2Rogor (C in composite photocatalyst material degrading waste water5H12NO3PS2)
By the BiSnSbO of 1.2g6-TiO2Composite photocatalyst material is put into 500mL Rogor aqueous solution and forms suspension system,
The initial concentration of Rogor aqueous solution is 0.04mmol/L, initial pH value 7.Rogor solution is irradiated using the xenon lamp of 500W, is mixed
By optical filter (λ > 420nm).Incident light intensity of illumination is 4.76x10-6Einstein L-1s-1.Magnetic is used in experimentation
It is in suspended state that the mode of power stirring and oxygenic aeration maintains catalyst fines in aqueous solution.Entire illumination reaction it is closed not
It is carried out in the environment of light transmission.
The experimental results showed that with BiSnSbO6-TiO2Composite photocatalyst material under visible light illumination, with irradiation time
Extend, the concentration of Rogor gradually decreases, and total organic carbon (TOC) concentration is gradually lowered, and by 300min, the removal rate of Rogor is
The removal rate (mineralization rate) of 100%, total organic carbon TOC are up to 95.37%, CO2Yield be 0.09325mmol, crystal violet and when
Between First order kinetic constant Kc be 0.00832min-1, the First order kinetic constant K of total organic carbon and timeTOCFor
0.00791min-1.Detailed data are shown in Table 6.
Table 6 is with BiSnSbO6-TiO2Composite photocatalyst material is catalyst degradation Rogor related data obtained
3, using powder photocatalytic material Bi2WO6Rogor (C in degrading waste water5H12NO3PS2)
By the Bi of 1.2g2WO6Fine catalyst is put into 500mL Rogor aqueous solution and forms suspension system, Rogor aqueous solution
Initial concentration is 0.04mmol/L, initial pH value 7.Rogor solution is irradiated using the xenon lamp of 500W, is mixed by optical filter (λ
> 420nm).Incident light intensity of illumination is 4.76x10-6Einstein L-1s-1.Magnetic agitation and oxygenation are used in experimentation
It is in suspended state that the mode of aeration maintains catalyst fines in aqueous solution.Entire illumination reaction is under closed opaque environment
It carries out.The experimental results showed that with Bi2WO6Under visible light illumination for catalyst, as the irradiation time increases, the concentration of Rogor
It gradually decreases, total organic carbon (TOC) concentration is gradually lowered, and by 310min, the removal rate of Rogor is 55.93%, total organic
The removal rate (mineralization rate) of carbon TOC is up to 50.37%, CO2Yield be 0.04921mmol, the first order kinetics of crystal violet and time
Constant Kc is 0.00336min-1, the First order kinetic constant K of total organic carbon and timeTOCFor 0.00291min-1.Detailed number
According to being shown in Table 7.
Table 7 is with Bi2WO6Powder is catalyst degradation Rogor related data obtained
By using the crystal violet (C in above-mentioned three kinds different catalyst degradation waste water5H12NO3PS2), specifically to score
It analyses as follows:
(1) it is utilized respectively BiSnSbO6And Bi2WO6Powder is the performance comparison of catalyst degradation Rogor
Under the premise of primary condition is consistent, Bi is utilized2WO6The fine catalyst Rogor in degrading waste water under visible light,
In radiation of visible light 200min, the removal rate of Rogor is 31.15%, and the removal rate (mineralization rate) of total organic carbon TOC reaches
25.09%;When irradiating 310min under visible light, Rogor is not completely degraded also, and the degradation rate of Rogor only reaches
55.93%, the removal rate of total organic carbon TOC has only reached 50.37%, CO2Yield be 0.04921mmol.
And under identical primary condition, utilize BiSnSbO6The fine catalyst Rogor in degrading waste water under visible light,
In radiation of visible light 310min, the removal rate of Rogor is 91.03%, and the removal rate (mineralization rate) of total organic carbon TOC reaches
82.29%, CO2Yield be 0.08014mmol, be much higher than Bi2WO6CO when fine catalyst degradation Rogor2Yield.Lead to again
Cross comparison BiSnSbO6And Bi2WO6The First order kinetic constant of the removal rate of fine catalyst degradation Rogor and total organic carbon TOC,
The results show that utilizing BiSnSbO6The First order kinetic constant that fine catalyst obtains is than utilizing Bi2WO6Fine catalyst obtains
The First order kinetic constant obtained is much higher, it can be seen that BiSnSbO6The rate of fine catalyst degradation Rogor is much larger than Bi2WO6
Fine catalyst.
In conclusion photocatalytic degradation removes the Rogor in water removal, BiSnSbO under identical primary condition6Fine catalyst
Compare Bi2WO6Fine catalyst performance is good, high-efficient, degradation speed is fast.
(2) it is utilized respectively BiSnSbO6-TiO2Composite catalyst and Bi2WO6Powder is the performance pair of catalyst degradation Rogor
Than
Under the premise of primary condition is consistent, Bi is utilized2WO6The fine catalyst Rogor in degrading waste water under visible light,
In radiation of visible light 200min, the removal rate of Rogor is 31.15%, and the removal rate (mineralization rate) of total organic carbon TOC reaches
25.09%;When irradiating 310min under visible light, Rogor is not completely degraded also, and the degradation rate of Rogor only reaches
55.93%, the removal rate of total organic carbon TOC has only reached 50.37%, CO2Yield be 0.04921mmol.
And under identical primary condition, utilize BiSnSbO6-TiO2Composite catalyst is under visible light illumination in degrading waste water
Rogor, in radiation of visible light 300min, Rogor has just been completely removed, the removal rate (mineralising of total organic carbon TOC
Rate) up to 95.37%, CO2Yield be 0.09325mmol, be much higher than Bi2WO6CO when fine catalyst degradation Rogor2Yield.
Passing through comparison BiSnSbO6-TiO2Composite catalyst and Bi2WO6The removal of fine catalyst degradation Rogor and total organic carbon TOC
The First order kinetic constant of rate, hence it is evident that as can be seen that utilizing BiSnSbO6-TiO2The first order kinetics that composite catalyst obtains are normal
Number is than utilizing Bi2WO6The First order kinetic constant that fine catalyst obtains is much higher, it can be seen that, BiSnSbO6-TiO2It is multiple
The rate for closing catalyst degradation Rogor is much larger than Bi2WO6Fine catalyst.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of preparation method of powder catalytic material, which is characterized in that the powder catalytic material is BiSnSbO6Powder catalytic
Material, the preparation method is that water-solvent-thermal method, includes the following steps:
1) material molar ratio bismuth nitrate [Bi (NO is pressed3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5The ratio of]=1:1:1
It weighs powder to be then dissolved in water, stirs, obtain mixed solution;
2) mixed solution in the step 1) is transferred in reaction kettle and is sealed, 150 DEG C of constant temperature are stood for 24 hours, and room temperature is cold later
But;
3) product obtained in the step 2) is filtered, is respectively washed 3 times with water and dehydrated alcohol, is dried in vacuo at 50-80 DEG C
5-6h, grinding obtain catalyst BiSnSbO6。
2. a kind of preparation method of powder catalytic material according to claim 1, which is characterized in that the preparation method or
For complex precursors method, the complex precursors method includes the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5The ratio of]=1:1:1 weighs
Powder, later with organic-fuel citric acid (C6H8O7) be put into togerther in beaker, deionized water, magnetic agitation, then room temperature is added
Lower standing for 24 hours, makes metal cation and citric acid form complex, obtains precursor solution;
2) by the precursor solution in the step 1) as in beaker, with clad steel silk screen sealed beaker mouth, later by beaker
It is placed in constant temperature 30min in 200 DEG C of Muffle furnace, then 3 DEG C/min is warming up to 300 DEG C of solution full combustions made in beaker, obtains
To combustion product;
3) product obtained in the step 2) is annealed 6h at 1000 DEG C, after natural cooling, sample is ground, is obtained
BiSnSbO6Fine catalyst, kept dry.
3. a kind of -2 any BiSnSbO according to claim 16The powder catalytic material that powder catalytic material preparation method obtains,
It is characterized in that, the powder catalytic material is single-phase BiSnSbO6Powder catalyst material, the average-size of particle are 720-
770nm。
4. a kind of application of powder catalytic material according to claim 3 in waste water, which is characterized in that the powder is urged
Agent material is BiSnSbO6Powder catalytic material, the application in waste water are organic for the crystal violet in degrading waste water, Rogor
Pollutant.
5. a kind of preparation method of composite photocatalyst material, which is characterized in that the composite photocatalyst material is BiSnSbO6-
TiO2Composite photocatalyst material, the preparation method is that water-solvent-thermal method, includes the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5]: titanium tetrachloride [TiCl4]=
The ratio of 1:1:1:3 weighs powder and is then dissolved in water, and stirring obtains mixed solution;
2) mixed solution in the step 1) is transferred in reaction kettle and is sealed, 150 DEG C of constant temperature are stood for 24 hours, and room temperature is cold later
But;
3) product obtained in the step 2) is filtered, is respectively washed 3 times with water and dehydrated alcohol, is dried in vacuo 6h at 60 DEG C,
Grinding obtains catalyst BiSnSbO6-TiO2。
6. a kind of preparation method of composite photocatalyst material according to claim 5, which is characterized in that the preparation method
Or be complex precursors method, the complex precursors method includes the following steps:
1) bismuth nitrate [Bi (NO in molar ratio3)3]: nitric acid tin [Sn (NO3)4]: antimony chloride [SbCl5]: titanium tetrachloride [TiCl4]=
The ratio of 1:1:1:3 weighs powder, later with organic-fuel citric acid (C6H8O7) be put into togerther in beaker, deionized water is added,
Then magnetic agitation is stood for 24 hours at room temperature, so that metal cation and citric acid is formed complex, obtain precursor solution;
2) by the precursor solution in the step 1) as in beaker, with clad steel silk screen sealed beaker mouth, later by beaker
It is placed in constant temperature 30min in 200 DEG C of Muffle furnace, then 3 DEG C/min is warming up to 300 DEG C of solution full combustions made in beaker, obtains
To combustion product;
3) product obtained in the step 2) is annealed 6h at 1000 DEG C, after natural cooling, sample is ground, is obtained
BiSnSbO6-TiO2Powder composite catalyst, kept dry.
7. a kind of composite photocatalyst material that the preparation method according to any composite photocatalyst material of claim 5-6 is prepared
Material, which is characterized in that the composite photocatalyst material is single-phase BiSnSbO6-TiO2Composite photocatalyst material.
8. a kind of application of composite photocatalyst material according to claim 7 in waste water, which is characterized in that described compound
Catalysis material is BiSnSbO6-TiO2Composite photocatalyst material, in waste water application be degrading waste water in crystal violet,
Rogor organic pollutant.
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