Photocatalytic oxidation activity of titanium dioxide film enhanced by Mn non-uniform doping

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	Photocatalytic oxidation activity of titanium dioxide film enhanced by Mn non-uniform doping
	Zhang Kaijian 1; Xu Wei 2; Li Xinjun2 ; Zheng Shaojian2 ; Xu Gang2 ; Wang Jianhua 3
	2006
Source Publication	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
Volume	16 Issue:5 Pages:1069
Abstract	The thin films of TiO_2 doped by Mn non-uniformly were prepared by sol-gel method under process control. Each film was characterized by XPS, SEM, UV-vis spectrophotometry and electrochemistry workstation analysis. The activity of the photocatalyst was evaluated by the kinetics of photocatalytic degradation of aqueous methyl orange under the UV radiation. The results show that Mn non-uniform doping evidently enhances the photocatalytic activity of TiO_2 thin film. In 80 min, the degradation rates of aqueous methyl orange are 62%, 12% and 34% for Mn non-uniformly doped film (0.7%), the uniformly doped film (0.7%) and pure titanium dioxide film, respectively. The characteristic of PN junction in the film was proved by electrochemical characterization. A mechanism for enhanced photocatalytic activity of Mn non-uniformly doped titanium dioxide film was discussed based on the effective separation of the photon-generated carrier because of the existence of the PN junction.
Keyword	photocatalyst TiO_2 Mn non-uniform doping film
Language	英语
Document Type	期刊论文
Identifier	http://ir.giec.ac.cn/handle/344007/33951
Collection	中国科学院广州能源研究所
Affiliation	1.重庆大学 2.中国科学院广州能源研究所 3.No.719 Research Institute of China Shipbuilding Industry Corporation
Recommended Citation GB/T 7714	Zhang Kaijian,Xu Wei,Li Xinjun,et al. Photocatalytic oxidation activity of titanium dioxide film enhanced by Mn non-uniform doping[J]. Transactions of Nonferrous Metals Society of China,2006,16(5):1069.
APA	Zhang Kaijian,Xu Wei,Li Xinjun,Zheng Shaojian,Xu Gang,&Wang Jianhua.(2006).Photocatalytic oxidation activity of titanium dioxide film enhanced by Mn non-uniform doping.Transactions of Nonferrous Metals Society of China,16(5),1069.
MLA	Zhang Kaijian,et al."Photocatalytic oxidation activity of titanium dioxide film enhanced by Mn non-uniform doping".Transactions of Nonferrous Metals Society of China 16.5(2006):1069.

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