CN107321341A - A kind of diatomite/（GR+TiO2）The preparation method of composite photo-catalyst - Google Patents
A kind of diatomite/（GR+TiO2）The preparation method of composite photo-catalyst Download PDFInfo
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- CN107321341A CN107321341A CN201710721831.1A CN201710721831A CN107321341A CN 107321341 A CN107321341 A CN 107321341A CN 201710721831 A CN201710721831 A CN 201710721831A CN 107321341 A CN107321341 A CN 107321341A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000746 purification Methods 0.000 claims abstract description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- 239000010936 titanium Substances 0.000 claims abstract description 7
- 239000011148 porous material Substances 0.000 claims abstract 2
- 230000009466 transformation Effects 0.000 claims abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 43
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 12
- 239000002243 precursor Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000012298 atmosphere Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims 1
- 238000004821 distillation Methods 0.000 claims 1
- 238000011068 loading method Methods 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 15
- 239000003054 catalyst Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 239000005416 organic matter Substances 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 229960000583 acetic acid Drugs 0.000 description 12
- 238000007146 photocatalysis Methods 0.000 description 10
- 239000010865 sewage Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 241000790917 Dioxys <bee> Species 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000011259 mixed solution Substances 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
- 239000002253 acid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- -1 filter aid Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 230000006872 improvement Effects 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
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
-
- 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
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- Engineering & Computer Science (AREA)
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- Geochemistry & Mineralogy (AREA)
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Abstract
The invention discloses a kind of diatomite/(GR+TiO2) composite photo-catalyst preparation method.Methods described is using the diatomite by fine purification and pore structure transformation as carrier, and butyl titanate is titanium source, by doped graphene, is prepared into diatomite/(GR+TiO2) composite photo-catalyst.The diatomite prepared by the method for the invention/(GR+TiO2) composite photo-catalyst, rate of photocatalytic oxidation under affinity, adsorption efficiency and the visible light conditions of particle and organic matter can be effectively improved, and can effectively solve the problem of catalyst is separated from water difficulty.Pollution is not produced in methods described production process, is adapted to industrialized production.
Description
Technical field
The invention belongs to inorganic non-metallic material and composite photo-catalyst preparing technical field, and in particular to a kind of diatom
Soil/(GR+TiO2) composite photo-catalyst preparation method.
Background technology
Photochemical catalyst is the material carrier of pollutant in photocatalytic method processing sewage and waste gas, and its performance decides photocatalysis
Handle the efficiency and cost of sewage and waste gas.Compared with traditional chemical oxidization method, biological treatment and high temperature incineration method, partly lead
Body photocatalysis technology utilizes solar energy, the pollutant in just can thoroughly degrade at normal temperatures and pressures air and water, and in the absence of two
A kind of secondary pollution, it is considered to be preferable environmental improvement technology.In semiconductor light-catalyst, titanium dioxide is with its cheap, nothing
Poison, conduction band valence band current potential are suitable, small photoetch, non-secondary pollution the advantages of, the study hotspot as multiphase photocatalysis field.
Optically catalytic TiO 2 technology is obtaining faster development in recent years, but it still suffers from bottleneck in terms of commercial Application
Problem：(1) it is the interfacial reaction area of increase unit catalyst, titanium dioxide is prepared into ultra-fine grain by researcher, or even is received
Scale particles, due to the Superhydrophilic after the Superhydrophilic of titanium dioxide, especially ultraviolet light, ultra-fine property and high dispersive
Property, the recovery of photocatalysis treatment sewage rear catalyst is very difficult；(2) some processes of photocatalysis treatment sewage are in ultraviolet light
Carried out according under the conditions of, and light degradation speed is relatively low, causes the cost of photocatalysis treatment sewage to be far above other method.Therefore,
Solve nano-TiO2The problem of being separated from water difficulty and the low speed of photocatalysis treatment sewage and waste gas, for realizing photocatalysis side
The industrial applications tool of method is of great significance.
A certain amount of graphene that adulterated in titanium dioxide can improve its absorption to visible ray, improve its photocatalysis work
Property.Such as patent CN102553560A mixes butyl titanate with graphene oxide dispersion, passes through sol-gal process and obtains two
Titanium oxide/graphene composite photocatalyst, improves photocatalysis efficiency.Patent CN104785235A hangs modified graphene oxide
Supernatant liquid is mixed with titanyl sulfate, and modified graphene oxide carried titanium dioxide composite photo-catalyst is obtained through hydro-thermal reaction.Pass through
The doping of graphene, photochemical catalyst efficiency is improved, still, nano-TiO2The problem of reclaiming difficult is not solved still
Certainly.
Diatomite be it is a kind of by diatom deposition form, the porous ore deposit by main component of amorphous silica
Thing, has the advantages that strong adsorptivity, acid resistance, resistance to 700 DEG C of high temperature, in adsorbent, filter aid, sewage disposal, catalyst carrier
In terms of have a wide range of applications.Diatomite rich reserves, it is cheap, not only can be with using it as catalysis material carrier
Reduction is prepared and use cost, the problem of can also solving to reclaim difficult in wastewater treatment practical application.
The content of the invention
Reclaim difficult to solve Nano titanium dioxide, it is seen that the low problem of rate of photocatalytic oxidation under optical condition, this
Invention provides a kind of diatomite/(GR+TiO2) composite photo-catalyst preparation method.Methods described is with by fine purification and hole
The diatomite of structure of modification is carrier, and butyl titanate is titanium source, by doped graphene, is prepared into diatomite/(GR+TiO2)
Composite photo-catalyst.Compared with the conventional method, the diatomite prepared by the method for the invention/(GR+TiO2) complex light urges
Agent, can effectively improve rate of photocatalytic oxidation under affinity, adsorption efficiency and the visible light conditions of particle and organic matter, and
The problem of catalyst is separated from water difficulty can effectively be solved；Pollution is not produced in methods described production process, is adapted to industry metaplasia
Production.
To realize above-mentioned target, the present invention uses following technical scheme：
A kind of diatomite/(GR+TiO2) composite photo-catalyst preparation method, methods described is with by fine purification and hole
The diatomite of structure of modification is carrier, and butyl titanate is titanium source, by doped graphene, is prepared into diatomite/(GR+TiO2)
Composite photo-catalyst.
Methods described has claimed below to raw material：
1) diatomite：Fine purification diatomite, the mesh of fineness 80~1250, dioxide-containing silica 80%~92%；
2) butyl titanate：Technical pure；
3) graphene：Graphene oxide；
4) absolute ethyl alcohol：Technical pure；
5) acetic acid：Technical grade.
It the described method comprises the following steps：
1) butyl titanate and anhydrous ethanol solvent are sufficiently mixed, under quick stirring, acetic acid are added dropwise, then steaming is slowly added dropwise
Distilled water, forms TiO2Aqueous precursor gel, it is standby；
2) by by the diatomite that finely purifies with through step 1) obtained TiO2Aqueous precursor gel and graphene oxide are mixed
Close, add suitable quantity of water and quickly stir, system is transferred in reactor, in 1~30h of reaction at 20~200 DEG C；
3) by step 2) made from mixed liquor dry after, be placed in atmosphere furnace, in a nitrogen atmosphere high-temperature heat treatment, calcine
300~800 DEG C of temperature, 1~100h of soaking time obtains diatomite/(GR+TiO2) composite photocatalyst material.
It is preferred that, affiliated step 1) in, the volume proportion of various raw materials is butyl titanate：Absolute ethyl alcohol：Distilled water：Vinegar
Acid=5~15：65~75:6~10:1~5.
It is preferred that, the step 2) in, the quality proportioning of various raw materials is diatomite：Titanium dioxide：Graphene=85~
95:5~25：1.5~2.5.
The advantages of the present invention are：
1) using diatomite as the carrier of titanium dioxide, pollutant can be adsorbed, at the same solve catalyst with
The problem of water separation is difficult；
2) adulterate a certain amount of graphene in composite photo-catalyst, can effectively improve the affine of particle and organic matter
Power, improves adsorption efficiency, effectively improves rate of photocatalytic oxidation under visible light conditions；
3) pollution is not produced in production process of the present invention, be adapted to industrialized production.
Brief description of the drawings
1 the invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is diatomite/(GR+TiO prepared by the embodiment of the present invention 12) composite photo-catalyst scanning electron show
Micro mirror (SEM) analyzes photo.
Fig. 2 is diatomite/(GR+TiO prepared by the embodiment of the present invention 12) composite photo-catalyst energy spectrum analysis
(EDS) photo.
Embodiment
Embodiment 1
By selection raw material claimed below：
1) diatomite：Fine purification diatomite, the mesh of fineness 80, dioxide-containing silica 80%；
2) butyl titanate：Technical pure；
3) graphene：Graphene oxide；
4) absolute ethyl alcohol：Technical pure；
5) acetic acid：Technical grade.
It the described method comprises the following steps：
1) butyl titanate 15mL, absolute ethyl alcohol 75mL, distilled water 7.5mL and acetic acid 1.5mL are measured, first by the fourth of metatitanic acid four
Ester is mixed with absolute ethyl alcohol and stirring, and acetic acid is then added dropwise, then distilled water is slowly added dropwise, and forms TiO2Aqueous precursor gel, is placed standby
With；
2) diatomite powder 30g, the graphene 0.8g after purification are weighed, TiO is weighed2Aqueous precursor gel, is converted into dioxy
Change titanium 8g, three is added after suitable quantity of water stirring mixing, is put into autoclave, under magnetic agitation, 12h is reacted at 150 DEG C；
3) it is placed in after mixed solution is dried at 60 DEG C in nitrogen atmosphere stove, 2h is incubated at 650 DEG C, obtains diatomite/(GR
+TiO2) composite photocatalyst material.
Referring to accompanying drawing 1 and accompanying drawing 2, Fig. 1 is diatomite/(GR+TiO2) composite photocatalyst material scanning electron microscope (SEM) photograph, Fig. 2 is
The elemental composition of cross microcell is marked in Fig. 1.Understand to have obtained diatomite/(GR+TiO by the embodiment2) complex light urges
Agent, titanium dioxide is distributed in diatomite surface and duct, and is coated on graphenic surface.
Embodiment 2
By selection raw material claimed below：
1) diatomite：Fine purification diatomite, the mesh of fineness 800, dioxide-containing silica 86%；
2) butyl titanate：Technical pure；
3) graphene：Graphene oxide；
4) absolute ethyl alcohol：Technical pure；
5) acetic acid：Technical grade.
It the described method comprises the following steps：
1) butyl titanate 5mL, absolute ethyl alcohol 65mL, distilled water 6mL and acetic acid 1mL are measured, first by butyl titanate with
Absolute ethyl alcohol and stirring is mixed, and acetic acid is then added dropwise, then distilled water is slowly added dropwise, and forms TiO2Aqueous precursor gel, is placed standby；
2) diatomite powder 85g, the graphene 1.5g after purification are weighed, TiO is weighed2Aqueous precursor gel, is converted into dioxy
Change titanium 5g, three is added after suitable quantity of water stirring mixing, is put into autoclave, under magnetic agitation, 1h is reacted at 20 DEG C；
3) it is placed in after mixed solution is dried at 80 DEG C in nitrogen atmosphere stove, 1h is incubated at 300 DEG C, obtains diatomite/(GR
+TiO2) composite photocatalyst material.
Embodiment 3
By selection raw material claimed below：
1) diatomite：Fine purification diatomite, the mesh of fineness 1250, dioxide-containing silica 92%；
2) butyl titanate：Technical pure；
3) graphene：Graphene oxide；
4) absolute ethyl alcohol：Technical pure；
5) acetic acid：Technical grade.
It the described method comprises the following steps：
1) butyl titanate 10mL, absolute ethyl alcohol 70mL, distilled water 10mL and acetic acid 5mL are measured, first by butyl titanate
Mixed with absolute ethyl alcohol and stirring, acetic acid is then added dropwise, then distilled water is slowly added dropwise, form TiO2Aqueous precursor gel, is placed standby；
2) diatomite powder 95g, the graphene 2.5g after purification are weighed, TiO is weighed2Aqueous precursor gel, is converted into dioxy
Change titanium 2.5g, three is added after suitable quantity of water stirring mixing, is put into autoclave, under magnetic agitation, in 200 DEG C of reactions
30h；
3) by mixed solution 70 DEG C dry after be placed in nitrogen atmosphere stove, 800 DEG C be incubated 100h, obtain diatomite/
(GR+TiO2) composite photocatalyst material.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the field, it can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
Among the obvious changes or variations of stretching is still in protection scope of the present invention.
Claims (6)
1. a kind of diatomite/GR+TiO2The preparation method of composite photo-catalyst, it is characterised in that：Methods described is with by finely carrying
The diatomite of pure and mild pore structure transformation is carrier, and butyl titanate is titanium source, by doped graphene, is prepared into diatomite/GR+
TiO2Composite photo-catalyst.
2. a kind of diatomite/GR+TiO as claimed in claim 12The preparation method of composite photo-catalyst, it is characterised in that institute
State method has claimed below to raw material：
1) diatomite：Fine purification diatomite, the mesh of fineness 80~1250, dioxide-containing silica 80%~92%；
2) butyl titanate：Technical pure；
3) graphene：Graphene oxide；
4) absolute ethyl alcohol：Technical pure；
5) acetic acid：Technical grade.
3. a kind of diatomite/GR+TiO as claimed in claim 1 or 22The preparation method of composite photo-catalyst, it is characterised in that
It the described method comprises the following steps：
1) butyl titanate and anhydrous ethanol solvent are sufficiently mixed, under quick stirring, acetic acid are added dropwise, then distillation is slowly added dropwise
Water, forms TiO2Aqueous precursor gel, it is standby；
2) by by the diatomite that finely purifies with through step 1) obtained TiO2Aqueous precursor gel and graphene oxide mixing, plus
Enter suitable quantity of water quickly to stir, system is transferred in reactor, in 1~30h of reaction at 20~200 DEG C；
3) by step 2) made from mixed liquor dry after, be placed in atmosphere furnace, in a nitrogen atmosphere high-temperature heat treatment, calcining heat
300~800 DEG C, 1~100h of soaking time obtains diatomite/(GR+TiO2) composite photocatalyst material.
4. a kind of diatomite/GR+TiO as claimed in claim 32The preparation method of composite photo-catalyst, it is characterised in that：Institute
Belong to step 1) in, the volume proportion of various raw materials is butyl titanate：Absolute ethyl alcohol：Distilled water：Acetic acid=5~15：65~75:
6~10:1~5.
5. a kind of diatomite/GR+TiO as claimed in claim 32The preparation method of composite photo-catalyst, it is characterised in that：Institute
State step 2) in, the quality proportioning of various raw materials is diatomite：Titanium dioxide：Graphene=85~95:5~25：1.5~2.5.
6. a kind of diatomite/GR+TiO as described in claim 1,2,32The preparation method of composite photo-catalyst, its feature exists
In：Titanium dioxide and graphene are combined back loading on diatomite surface.
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Cited By (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 |
| 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 |
| 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 |
| 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 |
| CN113716679A (en) * | 2021-09-23 | 2021-11-30 | 湖南科美洁环保科技有限公司 | Sewage treatment method |
| CN113876989A (en) * | 2021-10-09 | 2022-01-04 | 苏州同构科技有限公司 | Diatomite deodorant and application thereof |
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| CN102350334A (en) * | 2011-08-08 | 2012-02-15 | 江苏大学 | Graphene/mesoporous titanium dioxide visible light catalyst and preparation method |
| CN102553560A (en) * | 2012-01-12 | 2012-07-11 | 哈尔滨工业大学 | Preparation method of titanium dioxide/graphene composite photocatalyst |
| CN104785235A (en) * | 2015-03-25 | 2015-07-22 | 中南大学 | Preparation method for modified graphene-loaded titanium dioxide composite photocatalyst |
| CN105964236A (en) * | 2016-05-27 | 2016-09-28 | 天津工业大学 | Preparing method for graphene/titanium dioxide photocatalyst |
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| 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 |
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