Effect of doping mode on the photocatalytic activities of Mo/TiO2

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	Effect of doping mode on the photocatalytic activities of Mo/TiO2
	Yang, Y; Li, XJ; Chen, JT; Wang, LY
	2004-05-21
发表期刊	JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷号	163 期号:3 页码:517-522
摘要	The thin films of photocatalyst, TiO2 doped by Mo6+ in different forms, were prepared by sol-gel method. The photocatalysts were characterized by X-ray diffraction (XRD), UV-Vis transmittance spectra and electrochemical impedance spectroscopy, and the photocatalytic activity was characterized by photocatalytic degradation of aqueous methyl orange under UV radiation. The results showed that the TiO2, doped by Mo6+ extend absorption edge and interfacial charge transfer resistance decrease. The photocatalytic activity of TiO2 doped by Mo6+ in bottom is much better than that of pure TiO2, those doped in surface, or those doped uniformly. The activity of TiO2 doped by Mo6+ in bottom mode at optimal concentration, 1 at.%, increased nearly two times than pure TiO2. The effects of doping modes on the photocatalytic activities were discussed in the terms of separateness of charge carriers that there maybe form barrier of carrier in bottom doping mode and then restraining the (e(-)-h(+)) pair recombination. (C) 2004 Elsevier B.V All rights reserved.
文章类型	Article
关键词	Photocatalysis Titanium Dioxide Molybdenum Doping Mode Thin Film
WOS标题词	Science & Technology ; Physical Sciences
研究领域[WOS]	Chemistry
关键词[WOS]	TIO2
收录类别	SCI
语种	英语
WOS类目	Chemistry, Physical
WOS记录号	WOS:000221685700030
引用统计	被引频次：196[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/10488
专题	中国科学院广州能源研究所
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Yang, Y,Li, XJ,Chen, JT,et al. Effect of doping mode on the photocatalytic activities of Mo/TiO2[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2004,163(3):517-522.
APA	Yang, Y,Li, XJ,Chen, JT,&Wang, LY.(2004).Effect of doping mode on the photocatalytic activities of Mo/TiO2.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,163(3),517-522.
MLA	Yang, Y,et al."Effect of doping mode on the photocatalytic activities of Mo/TiO2".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 163.3(2004):517-522.