Photocatalytic mechanism studies of TiO2 particulate suspension by intensity-modulation photocurrent Spectroscopy

doi:10.3866/PKU.WHXB20020105

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	Photocatalytic mechanism studies of TiO2 particulate suspension by intensity-modulation photocurrent Spectroscopy
	Yin, F; Lin, Y; Lin, RF; Xiao, XR
刊名	ACTA PHYSICO-CHIMICA SINICA
	2002
卷号	18 期号:1 页码:21-25
关键词	Intensity-modulated Photocurrent Spectroscopy (Imps) Photocatalysis Of Tio2 Particulate Suspension Photogenerated Charges Anodic Photocurrents Cathodic Photocurrents
ISSN号	1000-6818
DOI	10.3866/PKU.WHXB20020105
英文摘要	The mechanism of the photocatalytic processes of TiO2 particulate suspension was studied in a PEC cell by using Intensity-Modulated Photocurrent Spectroscopy (IMPS). Collecting the frequency dependent photocurrent response from the TiO2 particulate suspension under modulated irradiation on a Pt electrode, a complex plane of IMPS response was obtained. The upper and lower semicircles represent the cathodic reduction and anodic oxidization reaction processes of photogenerated holes and electrons, respectively. The photocatalytic mechanism. and the effects of applied potentials and the addition of H2O2 were discussed in terms of the amplitude of cathodic and anodic photocurrents and the characteristic frequencies of upper and lower semicircles.
语种	英语
出版者	PEKING UNIV PRESS
WOS记录号	WOS:000173367900005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/79195]
专题	中国科学院化学研究所
通讯作者	Xiao, XR
作者单位	Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Yin, F,Lin, Y,Lin, RF,et al. Photocatalytic mechanism studies of TiO2 particulate suspension by intensity-modulation photocurrent Spectroscopy[J]. ACTA PHYSICO-CHIMICA SINICA,2002,18(1):21-25.
APA	Yin, F,Lin, Y,Lin, RF,&Xiao, XR.(2002).Photocatalytic mechanism studies of TiO2 particulate suspension by intensity-modulation photocurrent Spectroscopy.ACTA PHYSICO-CHIMICA SINICA,18(1),21-25.
MLA	Yin, F,et al."Photocatalytic mechanism studies of TiO2 particulate suspension by intensity-modulation photocurrent Spectroscopy".ACTA PHYSICO-CHIMICA SINICA 18.1(2002):21-25.