CN107321341B - diatomite/(GR + TiO)2) Preparation method of composite photocatalyst - Google Patents
diatomite/(GR + TiO)2) Preparation method of composite photocatalyst Download PDFInfo
- Publication number
- CN107321341B CN107321341B CN201710721831.1A CN201710721831A CN107321341B CN 107321341 B CN107321341 B CN 107321341B CN 201710721831 A CN201710721831 A CN 201710721831A CN 107321341 B CN107321341 B CN 107321341B
- Authority
- CN
- China
- Prior art keywords
- diatomite
- tio
- graphene
- tetrabutyl titanate
- composite photocatalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 30
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000004048 modification Effects 0.000 claims abstract description 5
- 238000012986 modification Methods 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims abstract description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 239000010936 titanium Substances 0.000 claims abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 47
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 45
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 26
- 229910021389 graphene Inorganic materials 0.000 claims description 24
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 19
- 230000001699 photocatalysis Effects 0.000 claims description 18
- 239000004408 titanium dioxide Substances 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000002243 precursor Substances 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 12
- 239000012153 distilled water Substances 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 239000012298 atmosphere Substances 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 6
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 4
- 238000009776 industrial production Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 description 8
- 238000007146 photocatalysis Methods 0.000 description 7
- 239000010865 sewage Substances 0.000 description 7
- 239000005909 Kieselgur Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000003760 magnetic stirring Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- -1 filter aids Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000010406 interfacial reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/14—Diatomaceous earth
-
- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B01J35/39—
Abstract
The invention discloses diatomite/(GR + TiO)2) A preparation method of a composite photocatalyst. According to the method, the diatomite/(GR + TiO) is prepared by taking the diatomite subjected to fine purification and pore structure modification as a carrier and tetrabutyl titanate as a titanium source and doping graphene2) A composite photocatalyst is provided. diatomite/(GR + TiO) prepared by the method of the invention2) The composite photocatalyst can effectively improve the affinity of particles and organic matters, the adsorption efficiency and the photocatalytic degradation rate under the condition of visible light, and can effectively solve the problem of difficult separation of the catalyst and water. The method does not produce pollution in the production process and is suitable for industrial production.
Description
Technical Field
The invention belongs to the technical field of preparation of inorganic non-metallic materials and composite photocatalysts, and particularly relates to diatomite/(GR + TiO)2) A preparation method of a composite photocatalyst.
Background
The photocatalyst is a substance carrier for treating pollutants in sewage and waste gas by photocatalysis, and the performance of the photocatalyst determines the efficiency and cost of the photocatalysis treatment of the sewage and the waste gas. Compared with the traditional chemical oxidation method, biological treatment method and high-temperature incineration method, the semiconductor photocatalysis technology can completely degrade the pollutants in the air and water at normal temperature and normal pressure by using solar energy, has no secondary pollution, and is considered as an ideal environment treatment technology. In semiconductor photocatalysts, titanium dioxide is a research hotspot in the field of heterogeneous photocatalysis due to the advantages of low price, no toxicity, proper conduction band potential, small photo-corrosiveness, no secondary pollution and the like.
The titanium dioxide photocatalysis technology is developed rapidly in recent years, but the bottleneck problem still exists in the aspect of industrial application: (1) in order to increase the interfacial reaction area of a unit catalyst, researchers prepare titanium dioxide into ultrafine particles or even nano-particles, and due to the super-hydrophilicity of the titanium dioxide, especially the super-hydrophilicity, the super-fineness and the high dispersibility after ultraviolet irradiation, the recovery of the catalyst after the photocatalytic treatment of sewage is very highDifficulty; (2) part of the processes for treating sewage by photocatalysis are carried out under the condition of ultraviolet illumination, and the rate of photodegradation is low, so that the cost for treating sewage by photocatalysis is far higher than that of other methods. Thus, nano TiO is solved2The problems of difficult separation from water and low rate of photocatalytic treatment of sewage and waste gas are very important for realizing the industrial application of the photocatalytic method.
The titanium dioxide is doped with a certain amount of graphene, so that the absorption of the titanium dioxide to visible light can be improved, and the photocatalytic activity of the titanium dioxide can be improved. For example, in patent CN102553560A, tetrabutyl titanate is mixed with graphene oxide dispersion liquid, and a titanium dioxide/graphene composite photocatalyst is obtained by a sol-gel method, so that the photocatalytic efficiency is improved. In patent CN104785235A, the modified graphene oxide suspension is mixed with titanyl sulfate, and a modified graphene oxide-supported titanium dioxide composite photocatalyst is obtained through a hydrothermal reaction. The photocatalyst efficiency is improved by doping graphene, but nano TiO2The problem of difficult recovery has not been solved yet.
Diatomite is a porous mineral which is formed by depositing diatom remains and takes amorphous silicon dioxide as a main component, has the advantages of strong adsorbability, acid resistance, 700 ℃ high temperature resistance and the like, and has wide application in the aspects of adsorbents, filter aids, sewage treatment, catalyst carriers and the like. The diatomite has rich reserves and low price, and can be used as a photocatalytic material carrier, thereby not only reducing the preparation and use costs, but also solving the problem of difficult recovery in the practical application of wastewater treatment.
Disclosure of Invention
In order to solve the problems of difficult recovery of nano-scale titanium dioxide, low photocatalytic degradation rate under visible light conditions and the like, the invention provides diatomite/(GR + TiO)2) A preparation method of a composite photocatalyst. According to the method, the diatomite/(GR + TiO) is prepared by taking the diatomite subjected to fine purification and pore structure modification as a carrier and tetrabutyl titanate as a titanium source and doping graphene2) A composite photocatalyst is provided. Compared with the prior art, the diatomite/(GR + TiO) prepared by the method of the invention2) The composite photocatalyst can effectively improve the particleThe affinity with organic matters, the adsorption efficiency and the photocatalytic degradation rate under the condition of visible light can effectively solve the problem that the catalyst is difficult to separate from water; the method does not produce pollution in the production process and is suitable for industrial production.
In order to achieve the aim, the invention adopts the following technical scheme:
diatomite/(GR + TiO)2) The preparation method of the composite photocatalyst comprises the steps of taking diatomite subjected to fine purification and pore structure transformation as a carrier, taking tetrabutyl titanate as a titanium source, and doping graphene to prepare the diatomite/(GR + TiO)2) A composite photocatalyst is provided.
The method has the following requirements on raw materials:
1) diatomite: finely purifying diatomite with the fineness of 80-1250 meshes and the content of silicon dioxide of 80-92 percent;
2) tetrabutyl titanate: the method is industrial pure;
3) graphene: graphene oxide;
4) anhydrous ethanol: the method is industrial pure;
5) acetic acid: industrial grade.
The method comprises the following steps:
1) mixing tetrabutyl titanate and absolute ethyl alcohol solvent, dripping acetic acid under rapid stirring, and slowly dripping distilled water to form TiO2Precursor gel for later use;
2) mixing the finely purified diatomite with the TiO obtained in step 1)2Mixing the precursor gel and the graphene oxide, adding a proper amount of water, quickly stirring, transferring the system into a reaction kettle, and reacting for 1-30 h at 20-200 ℃;
3) drying the mixed solution prepared in the step 2), placing the dried mixed solution in an atmosphere furnace, and carrying out high-temperature heat treatment in a nitrogen atmosphere at the calcination temperature of 300-800 ℃ for 1-100 h to obtain the diatomite/(GR + TiO)2) A composite photocatalytic material.
Preferably, in the step 1), the volume ratio of the raw materials is tetrabutyl titanate: anhydrous ethanol: distilled water: acetic acid is 5-15: 65-75: 6-10: 1-5.
Preferably, in the step 2), the mass ratio of the raw materials is diatomite: titanium dioxide: 85-95: 5-25: 1.5 to 2.5.
The invention has the advantages and beneficial effects that:
1) the diatomite is used as a carrier of the titanium dioxide, so that pollutants can be adsorbed, and the problem that the catalyst is difficult to separate from water is solved;
2) a certain amount of graphene is doped in the composite photocatalyst, so that the affinity of particles and organic matters can be effectively improved, the adsorption efficiency is improved, and the photocatalytic degradation rate under the condition of visible light is effectively improved;
3) the invention does not produce pollution in the production process and is suitable for industrial production.
Drawings
The present invention will be further described with reference to the accompanying drawings and example 1.
FIG. 1 shows the diatomaceous earth/(GR + TiO) prepared in example 1 of the present invention2) Scanning Electron Microscope (SEM) analysis of the composite photocatalyst.
FIG. 2 shows the diatomaceous earth/(GR + TiO) prepared in example 1 of the present invention2) Energy spectrum analysis (EDS) photograph of the composite photocatalyst.
Detailed Description
Example 1
The raw materials are selected according to the following requirements:
1) diatomite: fine purified diatomite with fineness of 80 meshes and silicon dioxide content of 80 percent;
2) tetrabutyl titanate: the method is industrial pure;
3) graphene: graphene oxide;
4) anhydrous ethanol: the method is industrial pure;
5) acetic acid: industrial grade.
The method comprises the following steps:
1) weighing 15mL of tetrabutyl titanate, 75mL of absolute ethyl alcohol, 7.5mL of distilled water and 1.5mL of acetic acid, stirring and mixing the tetrabutyl titanate and the absolute ethyl alcohol, then dropwise adding the acetic acid, and slowly dropwise adding the distilled water to form TiO2Precursor gel is placed for standby;
2) weighing 30g of purified diatomite powder and 0.8g of graphene, and weighing TiO2Converting the precursor gel into 8g of titanium dioxide, adding a proper amount of water into the precursor gel, stirring and mixing, putting into a high-pressure reaction kettle, and reacting for 12h at 150 ℃ under magnetic stirring;
3) drying the mixed solution at 60 ℃, putting the dried mixed solution into a nitrogen atmosphere furnace, and preserving heat for 2 hours at 650 ℃ to obtain the diatomite/(GR + TiO)2) A composite photocatalytic material.
Referring to FIGS. 1 and 2, FIG. 1 shows diatomaceous earth/(GR + TiO)2) Scanning electron microscope image of the composite photocatalytic material, and FIG. 2 is the element components marked with cross micro-area in FIG. 1. It is understood that the diatomaceous earth/(GR + TiO) is obtained by the above examples2) The titanium dioxide is distributed on the surface and the pore channels of the diatomite and coated on the surface of the graphene.
Example 2
The raw materials are selected according to the following requirements:
1) diatomite: fine purified diatomite with 800 meshes of fineness and 86 percent of silicon dioxide content;
2) tetrabutyl titanate: the method is industrial pure;
3) graphene: graphene oxide;
4) anhydrous ethanol: the method is industrial pure;
5) acetic acid: industrial grade.
The method comprises the following steps:
1) measuring 5mL of tetrabutyl titanate, 65mL of absolute ethyl alcohol, 6mL of distilled water and 1mL of acetic acid, firstly stirring and mixing the tetrabutyl titanate and the absolute ethyl alcohol, then dropwise adding the acetic acid, and then slowly dropwise adding the distilled water to form TiO2Precursor gel is placed for standby;
2) weighing 85g of purified diatomite powder and 1.5g of graphene, and weighing TiO2Converting the precursor gel into 5g of titanium dioxide, adding a proper amount of water into the precursor gel, stirring and mixing, putting into a high-pressure reaction kettle, and reacting for 1h at 20 ℃ under magnetic stirring;
3) drying the mixed solution at 80 ℃, putting the dried mixed solution into a nitrogen atmosphere furnace, and preserving heat for 1h at 300 ℃ to obtain the diatomite/(GR + TiO)2) Composite photocatalysisA material.
Example 3
The raw materials are selected according to the following requirements:
1) diatomite: fine purified diatomite with fineness of 1250 meshes and silicon dioxide content of 92 percent;
2) tetrabutyl titanate: the method is industrial pure;
3) graphene: graphene oxide;
4) anhydrous ethanol: the method is industrial pure;
5) acetic acid: industrial grade.
The method comprises the following steps:
1) weighing 10mL of tetrabutyl titanate, 70mL of absolute ethyl alcohol, 10mL of distilled water and 5mL of acetic acid, stirring and mixing the tetrabutyl titanate and the absolute ethyl alcohol, then dropwise adding the acetic acid, and slowly dropwise adding the distilled water to form TiO2Precursor gel is placed for standby;
2) weighing 95g of purified diatomite powder and 2.5g of graphene, and weighing TiO2Converting the precursor gel into 2.5g of titanium dioxide, adding a proper amount of water into the precursor gel, stirring and mixing, putting into a high-pressure reaction kettle, and reacting for 30 hours at 200 ℃ under magnetic stirring;
3) drying the mixed solution at 70 ℃, putting the dried mixed solution into a nitrogen atmosphere furnace, and preserving the heat for 100 hours at 800 ℃ to obtain the diatomite/(GR + TiO)2) A composite photocatalytic material.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (1)
1. diatomite/GR + TiO2The preparation method of the composite photocatalyst is characterized by comprising the following steps: the method takes diatomite subjected to fine purification and pore structure modification as a carrier, tetrabutyl titanate as a titanium source, and graphene is dopedPreparing into diatomite/GR + TiO2A composite photocatalyst;
the method has the following requirements on raw materials:
1) diatomite: finely purifying diatomite with the fineness of 80-1250 meshes and the content of silicon dioxide of 80-92 percent;
2) tetrabutyl titanate: the method is industrial pure;
3) graphene: graphene oxide;
4) anhydrous ethanol: the method is industrial pure;
5) acetic acid: industrial grade;
the method comprises the following steps:
1) mixing tetrabutyl titanate and absolute ethyl alcohol solvent, dripping acetic acid under rapid stirring, and slowly dripping distilled water to form TiO2Precursor gel for later use;
2) mixing the finely purified diatomite with the TiO obtained in step 1)2Mixing the precursor gel and the graphene oxide, adding a proper amount of water, quickly stirring, transferring the system into a reaction kettle, and reacting for 12 hours at 150 ℃;
3) drying the mixed solution prepared in the step 2), placing the dried mixed solution in an atmosphere furnace, performing high-temperature heat treatment in the nitrogen atmosphere, wherein the calcination temperature is 650 ℃, and the heat preservation time is 2 hours to obtain the diatomite/(GR + TiO)2) A composite photocatalytic material;
wherein the content of the first and second substances,
in the step 1), the volume ratio of the raw materials is tetrabutyl titanate: anhydrous ethanol: distilled water: acetic acid is 5-15: 65-75: 6-10: 1-5;
in the step 2), the mass ratio of the raw materials is diatomite: titanium dioxide: 85-95: 5-25: 1.5-2.5;
titanium dioxide and graphene are compounded and loaded on the surface of diatomite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710721831.1A CN107321341B (en) | 2017-08-22 | 2017-08-22 | diatomite/(GR + TiO)2) Preparation method of composite photocatalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710721831.1A CN107321341B (en) | 2017-08-22 | 2017-08-22 | diatomite/(GR + TiO)2) Preparation method of composite photocatalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107321341A CN107321341A (en) | 2017-11-07 |
| CN107321341B true CN107321341B (en) | 2020-03-31 |
Family
ID=60224378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710721831.1A Active CN107321341B (en) | 2017-08-22 | 2017-08-22 | diatomite/(GR + TiO)2) Preparation method of composite photocatalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107321341B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317131A (en) * | 2018-10-23 | 2019-02-12 | 重庆工商大学 | A kind of diatomite based composites and preparation method thereof |
| CN109722070A (en) * | 2018-12-29 | 2019-05-07 | 赵曦轮 | A kind of aqueous inorganic interior wall coating of environmental protection flame retardant and preparation method thereof |
| CN109401415A (en) * | 2019-01-12 | 2019-03-01 | 上海伟星新材料科技有限公司 | A kind of purifying formaldehyde water-resistant putty for interior wall |
| CN110102278A (en) * | 2019-05-06 | 2019-08-09 | 重庆大学 | A kind of nano titanium dioxide photocatalysis composite material and preparation method |
| CN110841589A (en) * | 2019-12-16 | 2020-02-28 | 北京工商大学 | Adsorbent with photocatalytic activity and preparation method and application thereof |
| CN113716679B (en) * | 2021-09-23 | 2022-08-19 | 湖南科美洁环保科技有限公司 | Sewage treatment method |
| CN113876989B (en) * | 2021-10-09 | 2023-05-12 | 苏州同构科技有限公司 | Diatomite deodorant and application thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350334B (en) * | 2011-08-08 | 2013-08-21 | 江苏大学 | Graphene/mesoporous titanium dioxide visible light catalyst and preparation method |
| CN102553560B (en) * | 2012-01-12 | 2013-12-04 | 哈尔滨工业大学 | Preparation method of titanium dioxide/graphene composite photocatalyst |
| CN104785235B (en) * | 2015-03-25 | 2017-03-01 | 中南大学 | A kind of preparation method of modified graphene carried titanium dioxide composite photo-catalyst |
| CN105964236A (en) * | 2016-05-27 | 2016-09-28 | 天津工业大学 | Preparing method for graphene/titanium dioxide photocatalyst |
-
2017
- 2017-08-22 CN CN201710721831.1A patent/CN107321341B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| Synthesis of well-dispersed TiO2@reduced graphene oxide (rGO) nanocomposites and their photocatalytic properties;Muhammad Sohail et al.;《Materials Research Bulletin》;20170216;第90卷;125-130 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107321341A (en) | 2017-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107321341B (en) | diatomite/(GR + TiO)2) Preparation method of composite photocatalyst | |
| CN107174919B (en) | Graphene modified composite mesoporous carbon microsphere air purifying agent | |
| CN109847786B (en) | Preparation method and application of Z-type photocatalyst MgAlLDH/CN-H | |
| Adam et al. | Silica–tin nanotubes prepared from rice husk ash by sol–gel method: Characterization and its photocatalytic activity | |
| Tan et al. | Ternary structural assembly of BiOCl/TiO2/clinoptilolite composite: study of coupled mechanism and photocatalytic performance | |
| US20180072586A1 (en) | Bismuth-titanium oxide nanowire material used for photocatalysis, and preparation method | |
| CN103949234B (en) | Boron doped graphene/TiO 2the preparation method of nanometer rods catalysis material | |
| CN108654586B (en) | Graphitized mesoporous carbon-TiO2Composite photocatalytic material and preparation method and application thereof | |
| Fu et al. | A cost-effective solid-state approach to synthesize gC 3 N 4 coated TiO 2 nanocomposites with enhanced visible light photocatalytic activity | |
| CN103100398A (en) | Preparation method of natural zeolite loaded one-dimensional TiO2 nanowire with high catalytic activity | |
| CN113145134B (en) | Visible light catalyst based on mineral composite material and preparation method thereof | |
| Dai et al. | Effect of preparation method on the structure and photocatalytic performance of BiOI and Bi5O7I for Hg0 removal | |
| CN105797762A (en) | Photocatalytic ceramsite as well as preparation method and application thereof | |
| CN110813241A (en) | Nitrogen-oxygen co-doped porous carbon material and preparation method and application thereof | |
| Lin et al. | Synthesis of a carbon-loaded Bi2O2CO3/TiO2 photocatalyst with improved photocatalytic degradation of methyl orange dye | |
| CN102698727A (en) | Method for preparing supported TiO2 photocatalyst with high thermal stability | |
| Mohamed et al. | Hollow N-TiO2/MnO2 nanocomposite based yeast biomass for gaseous formaldehyde degradation under visible light | |
| CN103212409A (en) | Porous-carbon-material-loaded mesoporous TiO2-Ag complex, and preparation method thereof | |
| CN113441142A (en) | Preparation method and application of oxygen vacancy-rich graphene-loaded porous nano ferroelectric oxide catalyst | |
| Chen et al. | Highly enhanced photocatalytic degradation of dye rhodamine B on the biogenic hierarchical porous TiO 2/SiO 2 with 1D/3D-chain | |
| CN110302819B (en) | MOFs-derived bimetallic magnetic nanoporous carbon ozone catalyst and application thereof | |
| CN104689842A (en) | Preparation method of two-dimensional honeycomb-shaped ZnO/zeolite for water secondary treatment | |
| CN105561969A (en) | Preparation and application of porous TixSn1-xO2 solid solution microspheres | |
| CN113731386A (en) | Preparation method of fly ash-based photocatalytic material | |
| CN113578300A (en) | Ag-g-C3N4Biological carbon composite material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |