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Investigation on visible-light activity of WOx/TiO2 photocatalyst
Zhang, Q; Li, XJ; Li, FB; Chang, J
2004-05-01
Source PublicationACTA PHYSICO-CHIMICA SINICA
Volume20Issue:5Pages:507-511
AbstractThe TiO2 thin films from dip-coating system were magnetron sputtered on with WOx, and can be activated by visible-light in gaseous dimethyl benzene photocatalytic degradation. The mechanism of its visible-light activity was investigated by UV-Vis absorption spectra and X-ray photoemission. UV-Vis absorption spectra showed its visible-light response expanding and having strong absorption with respect to the pure TiO2 film. XPS indicated the formation of W impurity energy level and Ti defect energy level, which was the main reason for the absorption in the visible-light range and the perquisite to have visible-light activity; and made Fermi level upper moved, free carriers more and photocatalytic efficiency enhanced.
SubtypeArticle
KeywordPhotocatalysis Activity Under Visible-light Xps Fermi Level Titanium Dioxide Magnetron Sputtering Tungsten Oxide
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3866/PKU.WHXB20040513
WOS Subject ExtendedChemistry
WOS KeywordPHOTO-CATALYTIC BEHAVIOR ; SOL-GEL ; DOPED TIO2 ; FILMS ; NANOPOWDER
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical
WOS IDWOS:000221624700013
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10493
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Q,Li, XJ,Li, FB,et al. Investigation on visible-light activity of WOx/TiO2 photocatalyst[J]. ACTA PHYSICO-CHIMICA SINICA,2004,20(5):507-511.
APA Zhang, Q,Li, XJ,Li, FB,&Chang, J.(2004).Investigation on visible-light activity of WOx/TiO2 photocatalyst.ACTA PHYSICO-CHIMICA SINICA,20(5),507-511.
MLA Zhang, Q,et al."Investigation on visible-light activity of WOx/TiO2 photocatalyst".ACTA PHYSICO-CHIMICA SINICA 20.5(2004):507-511.
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