CN102989449B - Preparation method of C-Pt-codoped TiO2 nanometer material - Google Patents

Preparation method of C-Pt-codoped TiO2 nanometer material Download PDF

Info

Publication number
CN102989449B
CN102989449B CN201210501752.7A CN201210501752A CN102989449B CN 102989449 B CN102989449 B CN 102989449B CN 201210501752 A CN201210501752 A CN 201210501752A CN 102989449 B CN102989449 B CN 102989449B
Authority
CN
China
Prior art keywords
preparation
tio
solution
sample
tio2
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.)
Expired - Fee Related
Application number
CN201210501752.7A
Other languages
Chinese (zh)
Other versions
CN102989449A (en
Inventor
崔晓莉
李绘
张晓艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fudan University
Original Assignee
Fudan University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fudan University filed Critical Fudan University
Priority to CN201210501752.7A priority Critical patent/CN102989449B/en
Publication of CN102989449A publication Critical patent/CN102989449A/en
Application granted granted Critical
Publication of CN102989449B publication Critical patent/CN102989449B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Landscapes

  • Catalysts (AREA)

Abstract

The invention belongs to the technical field of titanium dioxide nanometer photocatalytic materials and particularly relates to a preparation method of a C-Pt-codoped TiO2 nanometer material. The preparation method comprises the following steps of: adding tetrabutyl titanate into an organic solvent containing chloroplatinic acid with certain mass, carrying out stirring to enable the solution to be uniformly mixed, igniting mixed liquor, so as to obtain gray solid after finishing combustion. According to a nanometer TiO2 composite material prepared by using the method, in a sacrificial agent system (methanol) and a pure water system, the activity of hydrogen prepared by photocatalytic water splitting is higher than the activities of C-single-doped TiO2 and P25, and meanwhile, the composite material expresses good photocatalytic degradation activity to methylene blue. According to the preparation method of the C-Pt-codoped TiO2 nanometer material, the method is very simple, special equipment is unnecessary, any waste is not generated, the subsequent thermal treatment is unnecessary, and the energy conservation and the emission reduction are realized in the preparation process.

Description

A kind of C, Pt codope TiO 2the preparation method of nano material
Technical field
The invention belongs to titanium dioxide nano photocatalysis material technical field, be specifically related to a kind of novel preparation method of C, Pt codope titanium dioxide catalysis material.
Background technology
Semiconductor light-catalyst, owing to can be widely used in the process of organic pollution, the purification of air, the production etc. of clean energy resource, more and more receives the concern of people.In numerous semiconductor light-catalyst, TiO 2there is nontoxic, active high, stable chemical nature, the advantage such as inexpensive, become the study hotspot of current photocatalysis field.But TiO 2energy gap comparatively large (Eg ≈ 3.2 eV), can only absorb the ultraviolet light accounting in sunshine about 4%, meanwhile, light induced electron and hole-recombination probability higher, cause TiO 2photo-generated carrier utilization ratio lower.Therefore, TiO is expanded 2light abstraction width, reduce the compound of photo-generated carrier and become research and prepare efficient TiO 2the key factor of photochemical catalyst, the method related to mainly contains metal, nonmetal doping, noble metal loading, semiconductors coupling, the sensitization etc. of dyestuff and quantum dot.
C is as the typical nonmetalloid of one, and the energy of its outer 2p track, higher than the 2p track of oxygen, after the 2p track of C and the 2p orbital hybridization of O, makes TiO 2part valence band on move, reduce TiO 2band-gap energy, therefore can absorb visible ray, thus by the electron excitation in valence band to conduction band, realize the red shift of absorption spectrum (1).And by the noble metal loading of trace at nano-TiO 2surface, the electronics that illumination can be made to generate and hole respectively localization, on noble metal and semiconductor light-catalyst, are conducive to the separation of electron-hole pair, greatly can improve TiO 2photocatalytic activity (2).In numerous noble metal, Pt has the highest work function, and the work function of metal is larger, and electronics is easier from TiO 2flow to this metal.In addition, for photocatalysis hydrogen production, the mainly electronic energy be concerned about from then on metal is sent to surface and reacts generation hydrogen with water, and this just needs the noble metal deposited not only will can catch electronics, also want electronics outwards to be transmitted effectively, Pt is exactly the desirable noble metal with this advantage (3).By C and Pt codope to TiO 2in, due to the synergy of both various favorable factors, not only can by TiO 2spectral absorption is extended to visible region, can also suppress the compound that photo-generate electron-hole is right, improves the reducing power of Pair production water.
Doped Ti O 2preparation method mainly comprise: sol-gel process (4,5), template (6), chemical precipitation method (7), microemulsion method (8)deng.But these preparation methods are comparatively complicated, required time is longer.Noble metal loading be generally under UV-irradiation by noble-metal-supported at nano-TiO 2surface, but irradiation time wants long enough (>=30 min), in addition also will through subsequent treatment such as filtering, wash, be dry.
The present invention has prepared the TiO of C, Pt codope by means of only one-step method 2powder body material, experimental result shows, nano-TiO prepared by the method 2no matter composite is in sacrifice agent system (methyl alcohol) or in pure aquatic system, and the activity of its photocatalytic hydrogen production by water decomposition is all higher than the TiO of single doping C 2and the activity of P25, this composite shows good Photocatalytic activity to methylene blue simultaneously.
bibliography:
（1）M. Matsuoka, M. Kitano, M. Takeuchi, K. Tsujimaru, M. Anpo, J.M. Thomas, Catal. Today 122 (2007) 51.
（2）P V. Kamat, J. Phys. Chem. Lett.3 (2012) 663.
（3）G.R. Bamwenda, S. Tsubota, T. Nakamura, M. Haruta, J. Photochem. Photobiol. A. 89 (1995) 177.
（4）T.Sreethawong, S.Laehsalee, S.Chavadej, Catal.Commun.10 (2009) 538.
（5）R. Subasri, M.Tripathi, K.Murugan, J.Revathi, G.V.N.Rao, T.N.Rao,Mater. Chem. Phys. 124(2010) 63.
（6）H. Wang, Z. Wu, Y. Liu, J. Phys. Chem. C 113 (2009) 13317.
（7）X.J.Quan, H.Q.Tan, Q.H. Zhao, J. Mater. Sci. 42 (2007) 6287.
（8）C.E. Zubieta, J.F.A.S. Martínez, C.V.Luengo, P.C.Schulz, Powd. Tech. 212 (2011) 410。
Summary of the invention
The object of the present invention is to provide a kind of simple, save time, without the need to subsequent treatment, preparation C, Pt co-doped nano TiO of discharging without organic liquid waste 2preparation method.
A kind of C, Pt codope TiO provided by the invention 2the preparation method of nano material, concrete steps are as follows: concrete steps are as follows: joined by butyl titanate in certain density chloroplatinic acid organic solution, the content of Pt is 0.1-0.6wt%, stirring makes solution mix, above-mentioned mixed solution is lighted, obtain gray solid after end to be combusted, be target product, the organic solvent in described chloroplatinic acid organic solution and the volume ratio of butyl titanate are 5:1 ~ 20:1.
In the present invention, the organic solvent in described chloroplatinic acid organic solution is one or more in ethanol, methyl alcohol or propyl alcohol.
In the present invention, the organic solvent in described chloroplatinic acid organic solution and the volume ratio of butyl titanate are 7:1 ~ 15:1.Volume ratio is unfavorable for TiO too greatly 2the formation of microballoon pattern, also can reduce the catalytic activity of composite.
C, Pt codope TiO that the present invention prepares 2composite, the mass fraction of Pt controls as 0.1-0.6wt%, and too many Pt can reduce the photocatalytic activity of composite.
Experiment shows, under ultraviolet-visible light irradiates, and nano-TiO prepared by the new method proposed by the present invention 2composite is in sacrifice agent system (methyl alcohol) or in pure aquatic system, all shows good photochemical catalyzing activity, in addition, it is active that synthesized sample has obvious photocatalytic degradation methylene blue, can be used for photolysis water hydrogen and photocatalysis to degrade organic matter field.
In addition, the inventive method is very simple, without the need to special installation, produces without any discarded object, without the need to subsequent heat treatment, in preparation process, achieves energy-saving and emission-reduction.
Accompanying drawing explanation
C, Pt codope TiO that Fig. 1 the present invention proposes 2the preparation process schematic diagram of composite.A represents mixed solution, the Pt-C/TiO that b obtains after representing burning 2powder body material.
TiO prepared by Fig. 2 the present invention 2scheme with the XRD of commodity P25 (d), the content of Pt is respectively (a): 0; (b): 0.1; (c): 0.4wt%(A: Anatase; B: Rutile Type).
The SEM figure of Fig. 3 sample, the volume ratio of absolute ethyl alcohol and butyl titanate is the content of 7:1, Pt is (A): 0; (B): 0.1wt%; (C): 0.4wt%.
The TEM figure of Fig. 4 sample, the volume ratio of absolute ethyl alcohol and butyl titanate is the content of 7:1, Pt is 0.4wt%.
The UV-Vis diffuse reflection spectroscopy figure of Fig. 5 sample and commodity P25, the volume ratio of absolute ethyl alcohol and butyl titanate is 7:1, (a): 0.4wt%Pt-C/TiO 2, (b): C/TiO 2, (c): P25.
0.1wt%Pt-C/TiO prepared by Fig. 6 embodiment of the present invention 1 2the absorbance of sample photocatalytic degradation methylene blue process under UV-irradiation is with the variation diagram of light application time.
0.4wt%Pt-C/TiO prepared by Fig. 7 embodiment of the present invention 2 2the absorbance of sample photocatalytic degradation methylene blue process under UV-irradiation is with the variation diagram of light application time.
0.6wt%Pt-C/TiO prepared by Fig. 8 embodiment of the present invention 3 2the absorbance of sample photocatalytic degradation methylene blue process under UV-irradiation is with the variation diagram of light application time.
Sample prepared by Fig. 9 the present invention in photocatalytic degradation methylene blue process, the logarithm ln (C of methylene blue solution relative concentration 0/ C) with the changing trend diagram of light application time, the content of Pt is respectively (a): 0.1wt%; (b): 0.4wt%; (c): 0.6wt%.
Detailed description of the invention
embodiment 1:
The chloroplatinic acid taking 3mg is dissolved in 35mL absolute ethyl alcohol, then adds 5mL butyl titanate wherein, is stirred to by solution transparent with glass bar.Light above-mentioned solution with match, liquid takes fire from liquid level, and burning end obtains grey powdery solid.In its sample, the mass percentage of Pt is 0.1%, measures 0.1wt%Pt-C/TiO 2the XRD of sample, finds that sample is the TiO of anatase crystal 2(Fig. 2).The SEM of working sample finds, the sample that this technology obtains has microballoon pattern (Fig. 3).UV-Vis diffuse reflection spectroscopy test result shows, the sample prepared of this technology visible region absorption comparatively P25 improve a lot (Fig. 5).
Accurately take 65mg 0.1wt%Pt-C/TiO 2composite sample puts into 180mL quartz flask, adds 100mL pure water, and before reaction, reaction system is ultrasonic 15min, N first 2purge 30min, then start illumination reaction under magnetic stirring, testing light source used is that (light intensity is 170 mWcm to 500W Xe lamp -2).Illumination successive reaction 3h, every 30min adopt a sample, quantitative analysis hydrogen content.The gas generated in course of reaction is analyzed on GC7900 type gas chromatograph, and detector is TCD detector, and chromatographic column is 5A molecular sieve, N 2do carrier gas.Illumination 3h hydrogen output is 7.18 μm of ol.
Accurately take 65 mg 0.1wt%Pt-C/TiO 2composite sample puts into 180mL quartz flask, adds the methanol aqueous solution of 100mL 20%, and before reaction, reaction system is ultrasonic 15min, N first 2purge 30min, then start illumination reaction under magnetic stirring, testing light source used is that (light intensity is 170mWcm to 500W Xe lamp -2).Illumination successive reaction 3h, every 30min adopt a sample, quantitative analysis hydrogen content.The gas generated in course of reaction is analyzed on GC7900 type gas chromatograph, and detector is TCD detector, and chromatographic column is 5A molecular sieve, N 2do carrier gas.Illumination 3h hydrogen output is 8.77 μm of ol, and under the time that illumination is same, the hydrogen output of P25 is only 0.045 μm of ol.
Take 50mg 0.1wt%Pt-C/TiO 2sample joins in 50mL methylene blue solution, measures after stirring 1h under dark-state.Illumination adopts the uviol lamp of 8W, and the absorbance of photocatalytic degradation different time methylene blue solution measured by every 20min UV-2300 ultraviolet specrophotometer.Fig. 6 shows, along with light application time increases, methylene blue solution absorbance reduces gradually, and the speed constant calculated in degradation of methylene blue process by Fig. 9 is k is 0.14h -1.
embodiment 2:
The chloroplatinic acid taking 12mg is dissolved in 35mL absolute ethyl alcohol, then adds 5mL butyl titanate wherein, is stirred to by solution transparent with glass bar.Light above-mentioned solution with match, liquid takes fire from liquid level, and burning end obtains grey powdery solid.In its sample, the mass percentage of Pt is 0.4%, measures 0.4wt%Pt-C/TiO 2the XRD of sample, finds that sample is the TiO of anatase crystal 2(Fig. 2).The SEM measuring this sample finds, the sample that this technology obtains has microballoon pattern (Fig. 3).TEM test result shows that this sample particle surface is dispersed with the point of many dead colors more uniformly, and these points are of a size of several nanometer, is the Pt nano particle (Fig. 4) introduced.UV-Vis diffuse reflection spectroscopy test result shows, the sample prepared of this technology visible region absorption comparatively P25 improve a lot (Fig. 5).
Accurately take 65 mg 0.4wt%Pt-C/TiO 2composite sample puts into 180mL quartz flask, adds the methanol aqueous solution of 100mL 20%, and before reaction, reaction system is ultrasonic 15min, N first 2purge 30min, then start illumination reaction under magnetic stirring, testing light source used is that (light intensity is 170mWcm to 500W Xe lamp -2).Illumination successive reaction 3h, every 30min adopt a sample, quantitative analysis hydrogen content.The gas generated in course of reaction is analyzed on GC7900 type gas chromatograph, and detector is TCD detector, and chromatographic column is 5A molecular sieve, N 2do carrier gas.Illumination 3h hydrogen output is 7.22 μm of ol.
Take 50mg 0.4wt%Pt-C/TiO 2sample joins in 50mL methylene blue solution, measures after stirring 1h under dark-state.Illumination adopts the uviol lamp of 8W, and the absorbance of photocatalytic degradation different time methylene blue solution measured by every 20 min UV-2300 ultraviolet specrophotometers.Fig. 7 shows, along with light application time increases, methylene blue solution absorbance reduces gradually, and the rate constants k calculated in degradation of methylene blue process by Fig. 9 is 0.21h -1.
embodiment 3:
The chloroplatinic acid taking 18mg is dissolved in 35mL absolute ethyl alcohol, then adds 5mL butyl titanate wherein, is stirred to by solution transparent with glass bar.Light above-mentioned solution with match, liquid takes fire from liquid level, and burning end obtains grey powdery solid, and in its sample, the mass percentage of Pt is 0.6%.
Accurately take 65 mg 0.6wt%Pt-C/TiO 2composite sample puts into 180mL quartz flask, adds the methanol aqueous solution of 100mL 20%, and before reaction, reaction system is ultrasonic 15min, N first 2purge 30min, then start illumination reaction under magnetic stirring, testing light source used is that (light intensity is 170mWcm to 500W Xe lamp -2).Illumination successive reaction 3h, every 30min adopt a sample, quantitative analysis hydrogen content.The gas generated in course of reaction is analyzed on GC7900 type gas chromatograph, and detector is TCD detector, and chromatographic column is 5A molecular sieve, N 2do carrier gas.Illumination 3h hydrogen output is 7.07 μm of ol.
Take 50mg 0.6wt%Pt-C/TiO 2sample joins in 50 mL methylene blue solutions, measures after stirring 1 h under dark-state.Illumination adopts the uviol lamp of 8 W, and the absorbance of photocatalytic degradation different time methylene blue solution measured by every 20 min UV-2300 ultraviolet specrophotometers.Fig. 8 shows, along with light application time increases, methylene blue solution absorbance reduces gradually, and the rate constants k calculated in degradation of methylene blue process by Fig. 9 is 0.16h -1.

Claims (3)

1. C, Pt codope TiO 2the preparation method of nano material, is characterized in that concrete steps are as follows: joined by butyl titanate in chloroplatinic acid organic solution, stirs and solution is mixed, lighted by above-mentioned mixed solution, obtain gray solid, be target product after end to be combusted; Wherein: in target product, the content of Pt is 0.1-0.6wt%, the organic solvent in described chloroplatinic acid organic solution and the volume ratio of butyl titanate are 5:1 ~ 20:1.
2. preparation method according to claim 1, is characterized in that: the organic solvent in described chloroplatinic acid organic solution is one or more in ethanol, methyl alcohol or propyl alcohol.
3. preparation method according to claim 1, is characterized in that: the organic solvent in described chloroplatinic acid organic solution and the volume ratio of butyl titanate are 7:1 ~ 15:1.
CN201210501752.7A 2012-11-30 2012-11-30 Preparation method of C-Pt-codoped TiO2 nanometer material Expired - Fee Related CN102989449B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210501752.7A CN102989449B (en) 2012-11-30 2012-11-30 Preparation method of C-Pt-codoped TiO2 nanometer material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210501752.7A CN102989449B (en) 2012-11-30 2012-11-30 Preparation method of C-Pt-codoped TiO2 nanometer material

Publications (2)

Publication Number Publication Date
CN102989449A CN102989449A (en) 2013-03-27
CN102989449B true CN102989449B (en) 2015-06-17

Family

ID=47918854

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210501752.7A Expired - Fee Related CN102989449B (en) 2012-11-30 2012-11-30 Preparation method of C-Pt-codoped TiO2 nanometer material

Country Status (1)

Country Link
CN (1) CN102989449B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103359686B (en) 2013-07-15 2015-04-22 中盈长江国际新能源投资有限公司 Light-catalyzed reaction system for collecting sunlight
CN111450872A (en) * 2020-05-20 2020-07-28 中国科学院重庆绿色智能技术研究院 Preparation method of boron-nitrogen doped titanium dioxide photocatalyst

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070111653A (en) * 2006-05-18 2007-11-22 (재)대구경북과학기술연구원 Titanium dioxide photo-catalyst and method of manufacturing the same
CN101301619A (en) * 2008-07-03 2008-11-12 南开大学 Method for preparing high efficiency metallic, non-metallic ion co-doped nano-TiO2 visible-light responsive photocatalyst
CN102211033A (en) * 2011-04-15 2011-10-12 中国林业科学研究院林产化学工业研究所 Method for preparing platinum and nitrogen codoped active carbon supported titanium dioxide photocatalyst
CN102500426A (en) * 2011-09-22 2012-06-20 中国矿业大学 Low-temperature two-step method for preparing composite anatase type titanium dioxide visible light catalyst

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070111653A (en) * 2006-05-18 2007-11-22 (재)대구경북과학기술연구원 Titanium dioxide photo-catalyst and method of manufacturing the same
CN101301619A (en) * 2008-07-03 2008-11-12 南开大学 Method for preparing high efficiency metallic, non-metallic ion co-doped nano-TiO2 visible-light responsive photocatalyst
CN102211033A (en) * 2011-04-15 2011-10-12 中国林业科学研究院林产化学工业研究所 Method for preparing platinum and nitrogen codoped active carbon supported titanium dioxide photocatalyst
CN102500426A (en) * 2011-09-22 2012-06-20 中国矿业大学 Low-temperature two-step method for preparing composite anatase type titanium dioxide visible light catalyst

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Carbon-incorporated TiO2 microspheres: Facile flame assisted hydrolysis of tetrabutyl orthotitanate and photocatalytic hydrogen production";Xiaoyan Zhang et al;《International Journal of Hydrogen Energy》;20111024;第37卷;2. Experimental部分第2段、3.1节第1段和3.3节第4段 *

Also Published As

Publication number Publication date
CN102989449A (en) 2013-03-27

Similar Documents

Publication Publication Date Title
Zhao et al. Enhanced photocatalytic hydrogen evolution along with byproducts suppressing over Z-scheme CdxZn1− xS/Au/g-C3N4 photocatalysts under visible light
Chiu et al. Au@ Cu7S4 yolk@ shell nanocrystal-decorated TiO2 nanowires as an all-day-active photocatalyst for environmental purification
Zhu et al. Porous Ag-ZnO microspheres as efficient photocatalyst for methane and ethylene oxidation: Insight into the role of Ag particles
Jo et al. Synthesis of MoS2 nanosheets loaded ZnO–g-C3N4 nanocomposites for enhanced photocatalytic applications
Widiyandari et al. CuO/WO3 and Pt/WO3 nanocatalysts for efficient pollutant degradation using visible light irradiation
CN101791565B (en) TiO2@ graphite phase carbon nitride heterojunction composite photocatalyst and preparation method thereof
de Oliveira Melo et al. Visible light-induced hydrogen production from glycerol aqueous solution on hybrid Pt–CdS–TiO2 photocatalysts
Strataki et al. Hydrogen production by photocatalytic alcohol reforming employing highly efficient nanocrystalline titania films
CN101347724B (en) Carbon 60/titanium dioxide nano compound photocatalyst as well as preparation method and use thereof
CN101816943B (en) High-efficiency nano silver/silver bromide sunshine photocatalytic material and preparation method thereof
Li et al. Boosted charge transfer and selective photocatalytic CO2 reduction to CH4 over sulfur-doped K0. 475WO3 nanorods under visible light: Performance and mechanism insight
CN103480353A (en) Method for synthesis of carbon quantum dot solution by hydrothermal process to prepare composite nano-photocatalyst
CN105032468A (en) Cu2O-TiO2/g-C3N4 ternary complex and preparation and application method thereof
CN102658177B (en) Difunctional visual light responding catalyst, and preparation method and application thereof
CN106391086A (en) Preparation method of C3N4/SiO2 heterojunction photocatalyst
CN110252410A (en) A kind of Three-element composite photocatalyst, preparation method and application
Dong et al. Construction of a novel N-doped oxygen vacancy-rich TiO2 N-TiO2− X/g-C3N4 S-scheme heterostructure for visible light driven photocatalytic degradation of 2, 4-dinitrophenylhydrazine
CN109985618A (en) A kind of H occupies BiVO4The catalysis material of-OVs, preparation method and applications
Gao et al. Efficient solar-light conversion for optimizing the catalytic ozonation of gaseous toluene with PdOx-LaFeO3
CN101411995A (en) Method for preparing AgBr/PANI/TiO2 nano composite material with visible light catalytic activity
CN103301846A (en) InVO4.Cu2O.TiO2 ternary complex and preparation method and application thereof
CN103990472A (en) Stable and efficient hydrogen production co-catalyst and preparation method thereof
Wang et al. Boosted visible-light photocatalytic performance of Au/BiOCl/BiOI by high-speed spatial electron transfer channel
Zhang et al. High value-added fluorescence upconversion agents-assisted nano-semiconductors for efficient wide spectral response photocatalysis: Exerting energy transfer effect and applications
CN102989449B (en) Preparation method of C-Pt-codoped TiO2 nanometer material

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150617

Termination date: 20171130

CF01 Termination of patent right due to non-payment of annual fee