CN106475089A - A kind of TiO with surface Lacking oxygen2/WO3 Visible light catalyst and its preparation method and application - Google Patents
A kind of TiO with surface Lacking oxygen2/WO3 Visible light catalyst and its preparation method and application Download PDFInfo
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- CN106475089A CN106475089A CN201610892934.XA CN201610892934A CN106475089A CN 106475089 A CN106475089 A CN 106475089A CN 201610892934 A CN201610892934 A CN 201610892934A CN 106475089 A CN106475089 A CN 106475089A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000003054 catalyst Substances 0.000 title claims abstract description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000011941 photocatalyst Substances 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims abstract description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims abstract description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000012808 vapor phase Substances 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 13
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- 238000013508 migration Methods 0.000 claims description 4
- 230000005012 migration Effects 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 1
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000006731 degradation reaction Methods 0.000 abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 10
- 238000007146 photocatalysis Methods 0.000 description 10
- 238000006555 catalytic reaction Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 5
- 206010021143 Hypoxia Diseases 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- -1 ammonium tungstate hydrates Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001362 electron spin resonance spectrum Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 208000017983 photosensitivity disease Diseases 0.000 description 1
- 231100000434 photosensitization Toxicity 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
- 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
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
-
- 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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
-
- B01J35/39—
Abstract
The invention discloses a kind of TiO with surface Lacking oxygen2/WO3Visible light catalyst and preparation method thereof.I.e. with P25, HNO3It is presoma with ammonium tungstate hydrate, in still air, control 450 550 DEG C of acquisition TiO of sintering temperature2/WO3.Again with pure hydrogen as reducing agent, control 200 600 DEG C of reduction temperature, obtain the TiO with surface Lacking oxygen2/WO3.The TiO with surface Lacking oxygen that the present invention provides2/WO3Photocatalyst forms visible absorption in 400～800 nm, and has preferable Photocatalytic Activity for Degradation efficiency to vapor phase toluene.Its preparation method is simple, and effect substantially, can improve the utilization rate of sunlight.
Description
Technical field
The invention belongs to catalysis material technical field is and in particular to a kind of table of photocatalytic degradation gaseous-phase organic pollutant
Face oxygen defect type TiO2/WO3Photocatalyst and its preparation method and application.
Background technology
Environmental problem, directly affects the sustainable development of socio-economy and human health, and it is effectively administered and is subject to get more and more
Pay attention to.Photocatalysis technology is a kind for the treatment of technology that recent decades grow up, and has wide city in organic pollutant degradation
Field prospect.TiO2Because of good stability, reaction condition is gentle, catalysis activity is high, low price etc. becomes the most frequently used photocatalyst,
But its greater band gap (3.0～3.2 eV), can only absorb the ultraviolet light only accounting for 4% in sunlight, low to solar energy utilization rate；
Also has the TiO that a restraining factors is ultraviolet light irradiation2The photogenerated charge producing is susceptible to be combined, thus reducing TiO2Photocatalysis
Activity.In order to solve the above problems, improve photocatalysis efficiency, generally to TiO2Carry out modifying the visible ray expanding catalysis material
Absorption region, such as doping metals/nonmetallic ion, precious metal surface deposition, photosensitization and composite semiconductor etc..Another WO3Band gap
Narrow (2.5～2.8 eV), visible light absorbing, produce electronics and hole pair.Due to WO3Valence band location be higher than TiO2Valence band,
WO3Hole in valence band can migrate in the valence band of titanium dioxide, promotes transfer and the separation of electron hole, improves photocatalysis
Efficiency, therefore, composite semiconductor TiO2/WO3It is increasingly becoming study hotspot.
In recent years, wide coverage defect all has to the generation in photogenerated charge and hole pair, separation, migration and acquisition procedure
There is important impact, but not all defect is all favourable to photocatalytic activity, light can be become in the deep zone defect of crystals
Raw electronics and the complex centre in hole, lead to the reduction of photocatalyst activity.It is, thus, sought for one kind can expand visible ray ringing
Should, accelerate electron hole and separate and shift, the method improving photocatalytic activity.It is true that the raising of photocatalytic activity depends on
The surface nature of photocatalyst such as surface texture and surface oxygen defect.Particularly surface oxygen defect, in actual photocatalytic process,
Defect potential energy captures electron hole, accelerates transfer and the separation of electron hole, improves dividing of radiation exposed catalyst photogenerated charge
From efficiency.Therefore, we have the photocatalyst of surface oxygen defect using the preparation of hydrogen processing means, cause in semi-conducting material and carry
The transmission path of stream and the change of speed, the final optical property changing material, and then realize efficient visible light photocatalysis
Performance.
Content of the invention
The present invention to prepare high efficiency photocatalyst as target, in TiO2/WO3On the basis of composite semiconductor, by hydrogenation
Process, prepare Surface Oxygen deficiency TiO2/WO3Photocatalyst, and it is applied to Atmospheric Organic Pollutants（Toluene）Photocatalysis fall
Solution.This Surface Oxygen deficiency catalyst and composite semiconductor TiO2/WO3Compare, the absorbability of its visible ray increases considerably,
And effectively facilitated migration and the separation in electronics and hole, improve visible light photocatalysis active.
The visible light-responded Surface Oxygen deficiency TiO of the present invention2/WO3The preparation method of photocatalyst is：
Quantitative P25 is added dust technology, under agitation, adds the ammonium tungstate hydrate of metering, this mixed solution is stirred at room temperature
0.5～2 hour, until forming mixed uniformly suspension.Stand aging 15～30 hours under room temperature, collect the powder being formed simultaneously
Deionized water wash, after drying in 80～120 DEG C, calcines 12～30 hours for 450～650 DEG C in high temperature, in pure hydrogen atmosphere
After 200～600 DEG C of hydrotreatings, obtain the photocatalyst with surface oxygen defect.
The innovative point of the present invention is by hydrotreating, makes TiO2/WO3Photocatalyst produces surface oxygen defect, and is not hydrogenated with
The TiO processing2/WO3Compare, strengthen its visible absorption, effectively facilitated migration and the separation in electronics and hole, raising can light
Raw carrier participates in the probability of light-catalyzed reaction, so that the visible light photocatalysis active of this catalyst is dramatically increased.For example,
Catalyst, the Surface Oxygen deficiency TiO synthesized by the present invention are evaluated for raw material with the vapor phase toluene of 360 ppm2/WO3Photocatalysis
Agent, can fast degradation toluene at short notice, its removal efficiency is up to 73%, and catalysis activity is good, and preparation process is simple, work
Skill condition is not harsh, easily carries out large-scale production.
Brief description
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Fig. 1 is the embodiment of the present invention 1, the degradation of toluene photocatalytic activity comparison diagram of photocatalyst prepared by 2,3,4；
Fig. 2 is the embodiment of the present invention 1, the X-ray powder diffraction spectrum comparison diagram of photocatalyst prepared by 2,3,4；
Fig. 3 is the embodiment of the present invention 1, the UV-vis DRS spectrum comparison diagram of photocatalyst prepared by 2,3,4；
Fig. 4 is the embodiment of the present invention 1, the electron paramagnetic resonance spectrum comparison diagram of photocatalyst prepared by 2,3,4.
Specific embodiment
Embodiment 1
Weigh 2.59 g P25 to be dissolved in 1000 mL 10% v/v salpeter solution, stir under room temperature.Add by amount under agitation
35.0 g ammonium tungstate hydrates, to mix homogeneously, room temperature stands aging 24 hours within 1 hour for stirring, filters, deionized water wash
5-6 time, 100 DEG C of dryings 24 hours, 500 DEG C of calcinings of Muffle furnace obtain final product TiO in 24 hours2/WO3, the mol ratio of wherein titanium and tungsten is
4:1.With the flow velocity of 50 ml/min, 300 DEG C of reductase 12 hours obtain final product the photocatalysis with surface Lacking oxygen to pure hydrogen again.Gained is urged
Agent is labeled as 300T.
Embodiment 2
In embodiment 1, pure hydrogen reduction temperature is changed to 200 DEG C, the recovery time still be 2 hours, this example, be labeled as
200T.
Embodiment 3
In embodiment 1, pure hydrogen reduction temperature is changed to 400 DEG C, the recovery time still be 2 hours, this example, be labeled as
400T.
Embodiment 4
In embodiment 1, TiO2/WO3Do not carry out hydrogen reducing process, this example, be labeled as WT.
Embodiment 5
By Foochow newly navigate gas companies offer dried and clean air be divided into two branch roads, flow separately through toluene generator (frozen water
0 DEG C of bath) meet in the rustless steel blending tank that inner volume is 2.3 L with blank road (the second tunnel).Flow through toluene generator and sky
The gas flow on white rami road is respectively by mass flowmenter control (0～60 sccm).Because total flow is fixed, corresponding by adjusting
The flow of branch road can obtain required toluene concentration (360 ppm).
Embodiment 6
TiO2/WO3Photocatalytic activity by test sample, the degradation efficiency of vapor phase toluene is assessed, reactor used is
The volume of one customization is the quartz reactor of 25 mL.Before experiment, 0.1 g sample is mixed with 3 ml dehydrated alcohol, make point
Dissipate uniform suspension, glass fibre membrane (φ 50 mm) surface is dispersed in using coating method, 40 °C are overnight dried
Dry.Before carrying out light-catalyzed reaction, the glass fibre membrane of painting catalyst is closely laid in stainless steel reactor.Vapor phase toluene is led to
Cross the gas circuit from building to be introduced in reactor, during reaction, light source used is the PLS- that Beijing Bo Feilai Science and Technology Ltd. produces
SXE300 type xenon source, in course of reaction, the concentration change of toluene is by gas chromatograph on-line checking.Toluene removal efficiency (%)=
100* ([toluene]Entrance- [toluene]Outlet)/[toluene]Entrance.
Examples detailed above is only to illustrate and understand present disclosure and implement according to this, can not limit the guarantor of the present invention with this
Shield scope.All equivalent transformations substantially made according to the present invention, also belong to protection scope of the present invention.
Claims (10)
1. there is the TiO of surface Lacking oxygen2/WO3The preparation method of photocatalyst is it is characterised in that its step is as follows：
（1）Weigh P25 and the nitric acid of dilution, be blended in beaker；
（2）Under agitation, the ammonium tungstate hydrate gradually adding metering is to step（1）Resulting solution；
（3）Above-mentioned solution is continued to be stirred at room temperature；
（4）By step（3）The mixed solution of gained, room temperature standing is aging；
（5）By step（4）The powder filter of gained, washing is for several times；
（6）Drying steps（5）Gained powder；
（7）Calcining step（6）The presoma of gained, obtains TiO2/WO3；
（8）Reduction step（7）The TiO of gained2/WO3, obtain the TiO with surface Lacking oxygen2/WO3.
2. method according to claim 1 is it is characterised in that step（1）Described dust technology concentration is 0～20% v/v.
3. method according to claim 1 is it is characterised in that step（2）Described, the mol ratio of titanium and tungsten is 0～5%:
1.
4. method according to claim 1 is it is characterised in that step（3）Described, mixing time is 0.5～2 hour.
5. method according to claim 1 is it is characterised in that step（4）Described room temperature standing ageing time is 15～30
Hour.
6. method according to claim 1 is it is characterised in that step（5）Described powder is filtered and is washed with deionized water
Wash.
7. method according to claim 1 is it is characterised in that step（6）Baking temperature be 80～120 DEG C, when being dried
Between be 12～30 hours.
8. method according to claim 1 is it is characterised in that step（7）Calcining heat be 450～650 DEG C, during calcination
Between be preferably 12～30 hours.
9. method according to claim 1 is it is characterised in that step（8）Reducing gas be pure hydrogen, flow velocity be 20-60
Ml/min, reduction temperature is 200～600 DEG C, and the recovery time is preferably 0.5～4 hour.
10. the TiO with surface Lacking oxygen of method preparation according to claim 12/WO3The application of catalyst, its feature
It is：
1）Form strong visible absorption in 400～800 nm；
2）Surface Lacking oxygen promotes migration and the separation of electron hole；
3）To photocatalytic degradation vapor phase toluene, there is preferable efficiency.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892934.XA CN106475089A (en) | 2016-10-13 | 2016-10-13 | A kind of TiO with surface Lacking oxygen2/WO3 Visible light catalyst and its preparation method and application |
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| CN201610892934.XA CN106475089A (en) | 2016-10-13 | 2016-10-13 | A kind of TiO with surface Lacking oxygen2/WO3 Visible light catalyst and its preparation method and application |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552033A (en) * | 2017-08-31 | 2018-01-09 | 南昌大学 | A kind of preparation method of oxygen-containing vacancy strontium titanate visible light catalyst |
| CN109053379A (en) * | 2018-09-03 | 2018-12-21 | 中国科学院生态环境研究中心 | A kind of reduced form oxide material for toluene oxidation preparation high added value product |
| CN109569559A (en) * | 2019-01-15 | 2019-04-05 | 宁波石墨烯创新中心有限公司 | A kind of preparation method of photochemical catalyst |
| CN109647377A (en) * | 2018-11-30 | 2019-04-19 | 华中科技大学 | Electrochemistry self-doping type WO3Particulate load TiO2Nanotube and preparation method and application |
| CN111495355A (en) * | 2020-04-26 | 2020-08-07 | 中国科学院合肥物质科学研究院 | WO with visible light region L SPR absorption3-xPhotocatalyst, preparation method and application |
| CN111584800A (en) * | 2020-01-15 | 2020-08-25 | 武汉理工大学 | Oxygen-deficient titanium dioxide nanosheet modified lithium ion battery diaphragm and preparation method and application thereof |
| CN112452349A (en) * | 2020-11-06 | 2021-03-09 | 南京大学 | g-C for efficient catalytic oxidation of toluene driven by visible light3N4/TiO2Catalyst, preparation method and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552033A (en) * | 2017-08-31 | 2018-01-09 | 南昌大学 | A kind of preparation method of oxygen-containing vacancy strontium titanate visible light catalyst |
| CN107552033B (en) * | 2017-08-31 | 2020-10-16 | 江西省得鑫电子新材料有限公司 | Preparation method of oxygen vacancy-containing strontium titanate photocatalyst |
| CN109053379A (en) * | 2018-09-03 | 2018-12-21 | 中国科学院生态环境研究中心 | A kind of reduced form oxide material for toluene oxidation preparation high added value product |
| CN109647377A (en) * | 2018-11-30 | 2019-04-19 | 华中科技大学 | Electrochemistry self-doping type WO3Particulate load TiO2Nanotube and preparation method and application |
| CN109569559A (en) * | 2019-01-15 | 2019-04-05 | 宁波石墨烯创新中心有限公司 | A kind of preparation method of photochemical catalyst |
| CN111584800A (en) * | 2020-01-15 | 2020-08-25 | 武汉理工大学 | Oxygen-deficient titanium dioxide nanosheet modified lithium ion battery diaphragm and preparation method and application thereof |
| CN111495355A (en) * | 2020-04-26 | 2020-08-07 | 中国科学院合肥物质科学研究院 | WO with visible light region L SPR absorption3-xPhotocatalyst, preparation method and application |
| CN112452349A (en) * | 2020-11-06 | 2021-03-09 | 南京大学 | g-C for efficient catalytic oxidation of toluene driven by visible light3N4/TiO2Catalyst, preparation method and application thereof |
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Application publication date: 20170308 |