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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:149[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
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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.
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