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Relationship of photo-electrochemical behavior and photocatalytic activity of TiO2 thin film manipulatively doped by Ni
Yu, H; Li, XJ; Zheng, SJ; Xu, G
2006-06-01
Source PublicationCHINESE JOURNAL OF INORGANIC CHEMISTRY
Volume22Issue:6Pages:978-982
AbstractThe thin films of TiO2 doped manipulatively by Ni were prepared by a section-controlled process of sol-gel method. The activity of thin films was characterized by photocatalytic degradation of aqueous methyl orange under UV irradiation. The results showed that the photocatalytic activity of TiO2 thin film remarkably enhanced by non-uniformly doping, whereas that of the uniformly doped improved a little. The photo-electrochemistry behaviors of the thin films were studied by electrochemical workstation. The results showed that the non-uniformly doped TiO2 thin film displayed higher photocurrent compared with that of the pure one and the uniformly doped, which demonstrated that the photogenerated electron-hole pairs were effectively separated within the non-uniformly doped TiO2 thin film. The cyclic voltammetry curves revealed the oxidation-reduction potential shift in the reaction system of the non-uniformly doped TiO2 thin film under UV irradiation, which indicated that the inner electric field formed. Based on the p-n junction theory-of the semiconductor, the photocatalytic activity mechanism of the non-uniformly doped TiO2 thin films was discussed.
SubtypeArticle
KeywordPhotocatalysis Tio2 Thin Films Ni Doping Non-uniformity
WOS HeadingsScience & Technology ; Physical Sciences
WOS Subject ExtendedChemistry
WOS KeywordCONTAMINANTS ; WATER
Indexed BySCI
Language英语
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000238380300002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10245
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.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Yu, H,Li, XJ,Zheng, SJ,et al. Relationship of photo-electrochemical behavior and photocatalytic activity of TiO2 thin film manipulatively doped by Ni[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2006,22(6):978-982.
APA Yu, H,Li, XJ,Zheng, SJ,&Xu, G.(2006).Relationship of photo-electrochemical behavior and photocatalytic activity of TiO2 thin film manipulatively doped by Ni.CHINESE JOURNAL OF INORGANIC CHEMISTRY,22(6),978-982.
MLA Yu, H,et al."Relationship of photo-electrochemical behavior and photocatalytic activity of TiO2 thin film manipulatively doped by Ni".CHINESE JOURNAL OF INORGANIC CHEMISTRY 22.6(2006):978-982.
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