CN105689015A - Visible light responded layered titanic acid photocatalyst as well as peroxidation modifying method and application of visible light responded layered titanic acid photocatalyst - Google Patents
Visible light responded layered titanic acid photocatalyst as well as peroxidation modifying method and application of visible light responded layered titanic acid photocatalyst Download PDFInfo
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- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 title claims abstract description 89
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005502 peroxidation Methods 0.000 title abstract 3
- 239000000843 powder Substances 0.000 claims abstract description 35
- 239000008367 deionised water Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007864 aqueous solution Substances 0.000 claims description 33
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 14
- 230000001699 photocatalysis Effects 0.000 abstract description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 229910003083 TiO6 Inorganic materials 0.000 abstract description 5
- 239000004408 titanium dioxide Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000007790 solid phase Substances 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 238000010923 batch production Methods 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000010936 titanium Substances 0.000 description 41
- 239000010410 layer Substances 0.000 description 9
- 238000007146 photocatalysis Methods 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 229910003705 H2Ti3O7 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- SZUKQRSUJLZCFE-UHFFFAOYSA-N [Ti].O=[Si]=O Chemical compound [Ti].O=[Si]=O SZUKQRSUJLZCFE-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 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
- 239000012071 phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/48—Liquid treating or treating in liquid phase, e.g. dissolved or suspended
- B01J38/70—Wet oxidation of material submerged in liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- 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
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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Abstract
The invention discloses a visible light responded layered titanic acid photocatalyst as well as a peroxidation modifying method and application of the visible light responded layered titanic acid photocatalyst, and belongs to the field of photocatalytic materials. The visible light responded layered titanic acid photocatalyst yellow powder is obtained by the following steps: adding layered titanic acid white powder into an H2O2 water solution; after stirring to react, filtering and washing with de-ionized water; drying. Ti-O-O- coordination bonds exist between TiO6 octahedral layers of the prepared visible light responded layered titanic acid photocatalyst. Compared with products of solid-phase high-temperature doping modification and heterogeneous semi-conductive compounding, H2O2 peroxidation modified layered titanic acid has the advantages of rapid modifying speed, simple technical process and easiness of controlling, is suitable for large-batch production and the like. The lot of Ti-O-O- coordination bonds exist between the TiO6 octaheadral layers of the prepared visible light responded layered titanic acid photocatalyst prepared by the method, and the forbidden bandwidth is 2.2eV to 2.5eV; the visible light catalytic activity is stronger than that of commercial titanium dioxide P25, so that the visible light responded layered titanic acid photocatalyst can be widely applied to the aspect of degrading environment pollutants or organic matters.
Description
Technical field
The invention belongs to field of photocatalytic material, be specifically related to a kind of visible light-responded layered titanic acid photocatalyst and superoxidized modified methods and applications thereof。
Background technology
Metatitanic acid (H due to layer structure1.07Ti1.73O4, H2Ti4O9, H2Ti3O7, H2Ti5O11, H0.67Ti1.83O4Deng) there is open structure, research emphasis is concentrated mainly on stripped laminar metatitanic acid by Chinese scholars, thus synthesizing the derivates nanometer sheet of two-dimensional layer metatitanic acid nanometer sheet or two-dimensional nano titanium dioxide, the material of these two dimensions has the performance of excellence。Owing to the energy gap of layered titanic acid itself is bigger, can only to ultraviolet light response, can not being well applied to photocatalysis field, Most scholars is main or with other quasiconductor composition hetero-junctions, it is applied to photocatalysis, which also limits its application in photocatalysis field。
Oxygen-rich silicon dioxide titanium is found to have good visible light photocatalysis active。(Chem.Commun.2014,50,6923-6926) are current, prepare what the method for oxygen-rich silicon dioxide titanyl obtained mainly by the peroxide xerogel of Heat Treated Titanium。(Adv.Funct.Mater.2011,21,3744-3752) first H2O2Aqueous solution and butyl titanate react the peroxide generating soluble titanium, are then passed through the peroxide xerogel of drying to obtain titanium。But, use H2O2Aqueous solution processes titania cannot generate oxygen-rich silicon dioxide titanium, but in some Ti-O-O-coordinate bonds of titania Surface Creation。This is owing to titanium dioxide is a solid construction, H2O2Molecule can not enter into and to cause inside titania。
At present layered titanic acid is applied to photocatalysis field and has a lot, due to its energy gap relatively big (Eg=3.1～3.5eV), only under ultraviolet light conditions, there is photocatalytic activity。Ultraviolet light only accounts for about 5% in solar spectrum, in order to improve the layered titanic acid utilization rate to sunlight, is presently mainly by layered titanate carrying out solid phase high temperature dopant or carrying out what Heterogeneous Composite realized with other quasiconductor。But the modified speed of these methods is slow, complex process is wayward, is not suitable for producing in enormous quantities。
Summary of the invention
In order to overcome the defect existed in above-mentioned prior art, it is an object of the invention to provide a kind of visible light-responded layered titanic acid photocatalyst and superoxidized modified methods and applications thereof, the method can improve layered titanic acid photocatalysis performance under visible light, reaches the superoxidized modified purpose that layered titanic acid is visible light-responded。
The present invention is achieved through the following technical solutions:
The invention discloses a kind of superoxidized modified method of visible light-responded layered titanic acid photocatalyst, layered titanic acid white powder is joined H2O2In aqueous solution, after stirring reaction, filter, with deionized water wash, dry, obtain visible light-responded layered titanic acid photocatalyst yellow powder body。
Layered metatitanic acid white powder is the titanate with stratiform open architecture, such as H1.07Ti1.73O4、H2Ti4O9、H2Ti3O7、H2Ti5O11、H0.67Ti1.83O4Deng。
Described layered titanic acid white powder and H2O2The amount ratio of aqueous solution is (0.5～1) g:(50～200) mL。
Described H2O2The mass concentration of aqueous solution is 15%～35%。
Described mixing time is 1～10min。
Described baking temperature is 40～80 DEG C。
The invention also discloses and adopt the visible light-responded layered titanic acid photocatalyst prepared with the aforedescribed process, the TiO of this visible light-responded layered titanic acid photocatalyst6Ti-O-O-coordinate bond is there is between octahedral layer。
The energy gap of this visible light-responded layered titanic acid photocatalyst is 2.2～2.5eV。
The invention also discloses the application in degraded environmental contaminants or Organic substance of the above-mentioned visible light-responded layered titanic acid photocatalyst。
Compared with prior art, the present invention has following useful technique effect:
The inventive method selection H2O2Layered titanic acid is carried out superoxidized modified by aqueous solution, owing to layered titanic acid has open architecture, H2O2Molecule is easily advanced into TiO6Between octahedral layer, and and TiO6Titanium in octahedral layer forms Ti-O-O-coordinate bond and then the energy gap of reduction layered titanic acid, has reached layered titanic acid and has had the purpose of photocatalytic activity under visible light。Modified with solid phase high temperature dopant and heterogeneous partly lead compound phase ratio, H2O2It is fast that superoxidized modified layered titanic acid has modified speed, and technical process is simple, it is easy to controls, is suitable in advantages such as production in enormous quantities。
The present invention utilizes the open architecture characteristic of layered titanic acid, dexterously by H2O2Molecule is incorporated into inside (the namely TiO of layered titanic acid6Between between octahedral layer) so that the TiO of the visible light-responded layered titanic acid photocatalyst of preparation6There is substantial amounts of Ti-O-O-coordinate bond between octahedral layer, its energy gap is 2.2～2.5eV, and the visible light catalysis activity than commercialization titanium dioxide P25 is all strong, therefore, there is extensive use in degraded environmental contaminants or Organic substance。
Accompanying drawing explanation
Fig. 1 is a stratiform H prepared by the present invention1.07Ti1.73O4With b peroxidating stratiform H1.07Ti1.73O4Color camera；
Fig. 2 is a stratiform H prepared by the present invention1.07Ti1.73O4With b peroxidating stratiform H1.07Ti1.73O4XRD spectra；
Fig. 3 is stratiform H prepared by the present invention1.07Ti1.73O4With peroxidating stratiform H1.07Ti1.73O4UV-vis DRS spectrogram；
Fig. 4 is stratiform H prepared by the present invention1.07Ti1.73O4With peroxidating stratiform H1.07Ti1.73O4Transient photocurrents figure；
Fig. 5 is stratiform H prepared by the present invention1.07Ti1.73O4With peroxidating stratiform H1.07Ti1.73O4Visible Light Induced Photocatalytic figure to RhB dyestuff。
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited。
Embodiment 1
According to layered titanic acid and H2O2The consumption of aqueous solution is 0.5g:200mL, by layered titanic acid H1.07Ti1.73O4White powder joins the H that concentration is 5%2O2In aqueous solution, after stirring 1min, filter, deionized water wash, at 40 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 2
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:50mL, by layered titanic acid white powder H1.07Ti1.73O4Join the H that concentration is 30%2O2In aqueous solution, after stirring 10min, filter, deionized water wash, at 80 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 3
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:50mL, by layered titanic acid white powder H1.07Ti1.73O4Join the H that concentration is 30%2O2In aqueous solution, after stirring 1min, filter, deionized water wash, at 55 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 4
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:50mL, by layered titanic acid white powder H2Ti4O9Join the H that concentration is 10%2O2In aqueous solution, after stirring 5min, filter, deionized water wash, at 55 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 5
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:150mL, by layered titanic acid white powder H2Ti4O9Join the H that concentration is 5%2O2In aqueous solution, after stirring 2min, filter, deionized water wash, at 55 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 6
According to layered titanic acid and H2O2The consumption of aqueous solution is 0.5g:50mL, by layered titanic acid white powder H2Ti4O9Join the H that concentration is 5%2O2In aqueous solution, after stirring 1min, filter, deionized water wash, at 40 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 7
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:200mL, by layered titanic acid white powder H2Ti5O11, join the H that concentration is 30%2O2In aqueous solution, after stirring 10min, filter, deionized water wash, at 80 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 8
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:100mL, by layered titanic acid white powder H2Ti5O11, join the H that concentration is 10%2O2In aqueous solution, after stirring 5min, filter, deionized water wash, at 60 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 9
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:50mL, by layered titanic acid white powder H2Ti5O11, join the H that concentration is 30%2O2In aqueous solution, after stirring 2min, filter, deionized water wash, at 80 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 10
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:200mL, by layered titanic acid white powder H0.67Ti1.83O4Join the H that concentration is 30%2O2In aqueous solution, after stirring 10min, filter, deionized water wash, at 80 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 11
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:100mL, by layered titanic acid white powder H0.67Ti1.83O4Join the H that concentration is 10%2O2In aqueous solution, after stirring 5min, filter, deionized water wash, at 60 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Embodiment 12
According to layered titanic acid and H2O2The consumption of aqueous solution is 1g:50mL, by layered titanic acid white powder H0.67Ti1.83O4Join the H that concentration is 30%2O2In aqueous solution, after stirring 2min, filter, deionized water wash, at 80 DEG C, obtain yellow peroxidating layered titanic acid powder body after dry 1h。
Referring to Fig. 1, from fig. 1, it can be seen that powder body is white in a, peroxidating stratiform H in b1.07Ti1.73O4Present yellow。Referring to Fig. 2, as can be seen from Figure 2, the all of diffraction maximum of layered titanic acid is all substantially identical with peroxidating layered titanic acid, layer structure after hydrogen peroxide process and untreated front not change are described, simply in the diffraction maximum of (020) crystal face from 9.68 ° of left shift to 9.12 °, corresponding TiO6Octahedral layer spacing has expanded 9.697nm to from 9.137nm, illustrates that hydrogen peroxide enters interlayer so that interlamellar spacing increases。Fig. 3 is stratiform H prepared by the present invention1.07Ti1.73O4With peroxidating stratiform H1.07Ti1.73O4UV-vis DRS spectrogram, as can be seen from Figure 3, it was shown that the absorption band edge of peroxidating layered titanic acid light is 550nm, namely energy gap is 2.2eV。
Fig. 4 is stratiform H prepared by the present invention1.07Ti1.73O4With peroxidating stratiform H1.07Ti1.73O4Transient photocurrents figure；As can be seen from Figure 4, peroxidating layered titanic acid can effectively suppress efficiently separating of photo-generate electron-hole。Fig. 5 is stratiform H prepared by the present invention1.07Ti1.73O4With peroxidating stratiform H1.07Ti1.73O4Visible Light Induced Photocatalytic figure to RhB dyestuff；As can be seen from Figure 5, the relative layered titanic acid of peroxidating layered titanic acid is greatly improved, and the visible light catalysis activity than commercialization titanium dioxide P25 is all strong。
Above said content is in conjunction with concrete preferred implementation further description made for the present invention, it is not all of or unique embodiment, the conversion of any equivalence that technical solution of the present invention is taked by those of ordinary skill in the art by reading description of the present invention, the claim being the present invention is contained。
Claims (9)
1. the superoxidized modified method of layered titanic acid photocatalyst one kind visible light-responded, it is characterised in that layered titanic acid white powder is joined H2O2In aqueous solution, after stirring reaction, filter, with deionized water wash, dry, obtain visible light-responded layered titanic acid photocatalyst yellow powder body。
2. the superoxidized modified method of visible light-responded layered titanic acid photocatalyst according to claim 1, it is characterised in that layered metatitanic acid white powder is the titanate with stratiform open architecture。
3. the superoxidized modified method of visible light-responded layered titanic acid photocatalyst according to claim 1, it is characterised in that described layered titanic acid white powder and H2O2The amount ratio of aqueous solution is (0.5～1) g:(50～200) mL。
4. the superoxidized modified method of visible light-responded layered titanic acid photocatalyst according to claim 1, it is characterised in that described H2O2The mass concentration of aqueous solution is 15%～35%。
5. the superoxidized modified method of visible light-responded layered titanic acid photocatalyst according to claim 1, it is characterised in that described mixing time is 1～10min。
6. the superoxidized modified method of visible light-responded layered titanic acid photocatalyst according to claim 1, it is characterised in that described baking temperature is 40～80 DEG C。
7. adopt in claim 1～6 the visible light-responded layered titanic acid photocatalyst that the method described in any one prepares, it is characterised in that the TiO of this visible light-responded layered titanic acid photocatalyst6Ti-O-O-coordinate bond is there is between octahedral layer。
8. visible light-responded layered titanic acid photocatalyst according to claim 7, it is characterised in that the energy gap of this visible light-responded layered titanic acid photocatalyst is 2.2～2.5eV。
9. the application in degraded environmental contaminants or Organic substance of the visible light-responded layered titanic acid photocatalyst described in claim 7 or 8。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861669A (en) * | 2017-02-27 | 2017-06-20 | 陕西科技大学 | A kind of porous laminated structure metatitanic acid particle and preparation method thereof |
| CN106925260A (en) * | 2017-02-27 | 2017-07-07 | 陕西科技大学 | A kind of Ag2Titanium oxide of O cluster intercalations and its preparation method and application |
| CN106944035A (en) * | 2017-02-27 | 2017-07-14 | 陕西科技大学 | A kind of oxygen auto-dope stratiform niobium oxide powder and its preparation method and application |
| CN108511730A (en) * | 2018-05-03 | 2018-09-07 | 陕西科技大学 | A kind of holey Zn2Ti3O8/TiO2Nano combined platy particle and its preparation method and application |
| CN109092055A (en) * | 2018-10-16 | 2018-12-28 | 上海朗绿建筑科技股份有限公司 | A kind of formaldehyde adsorbent and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757937A (en) * | 2009-11-24 | 2010-06-30 | 江苏工业学院 | Titanium dioxide intercalation photocatalysed composite material and preparation method thereof |
| CN102266748A (en) * | 2011-06-09 | 2011-12-07 | 中山大学 | Method for preparing titanic acid/titanium dioxide mixed nano-powder material |
| CN103170320A (en) * | 2013-04-02 | 2013-06-26 | 常州大学 | Preparation method of stratified columnar titanium dioxide photocatalyst |
| CN103950944A (en) * | 2014-04-25 | 2014-07-30 | 浙江大学 | Sheet mineral and nano titanium dioxide intercalating composite material and preparation method thereof |
-
2016
- 2016-03-25 CN CN201610178898.0A patent/CN105689015A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757937A (en) * | 2009-11-24 | 2010-06-30 | 江苏工业学院 | Titanium dioxide intercalation photocatalysed composite material and preparation method thereof |
| CN102266748A (en) * | 2011-06-09 | 2011-12-07 | 中山大学 | Method for preparing titanic acid/titanium dioxide mixed nano-powder material |
| CN103170320A (en) * | 2013-04-02 | 2013-06-26 | 常州大学 | Preparation method of stratified columnar titanium dioxide photocatalyst |
| CN103950944A (en) * | 2014-04-25 | 2014-07-30 | 浙江大学 | Sheet mineral and nano titanium dioxide intercalating composite material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| YAN WANG ET AL.: ""Recoverable visible light photocatalytic activity of wide band gap nanotubular titanic acid induced by H2O2-pretreatment"", 《APPLIED CATALYSIS B: ENVIRONMENTAL》 * |
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| CN106861669A (en) * | 2017-02-27 | 2017-06-20 | 陕西科技大学 | A kind of porous laminated structure metatitanic acid particle and preparation method thereof |
| CN106925260A (en) * | 2017-02-27 | 2017-07-07 | 陕西科技大学 | A kind of Ag2Titanium oxide of O cluster intercalations and its preparation method and application |
| CN106944035A (en) * | 2017-02-27 | 2017-07-14 | 陕西科技大学 | A kind of oxygen auto-dope stratiform niobium oxide powder and its preparation method and application |
| CN106861669B (en) * | 2017-02-27 | 2019-06-04 | 陕西科技大学 | A kind of porous laminated structure metatitanic acid particle and preparation method thereof |
| CN106944035B (en) * | 2017-02-27 | 2019-08-06 | 陕西科技大学 | A kind of oxygen auto-dope stratiform niobium oxide powder and its preparation method and application |
| CN106925260B (en) * | 2017-02-27 | 2020-05-19 | 陕西科技大学 | Ag2O-cluster intercalated titanium oxide and preparation method and application thereof |
| CN108511730A (en) * | 2018-05-03 | 2018-09-07 | 陕西科技大学 | A kind of holey Zn2Ti3O8/TiO2Nano combined platy particle and its preparation method and application |
| CN109092055A (en) * | 2018-10-16 | 2018-12-28 | 上海朗绿建筑科技股份有限公司 | A kind of formaldehyde adsorbent and preparation method thereof |
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