CAS OpenIR  > 中科院上海原子核所2003年前
Electron transfer in colloidal TiO2 semiconductors sensitized by hypocrellin A
Zhou, ZX(; Qian, SP; Yao, SD(姚思德); Zhang, ZY
2002
Source PublicationRADIATION PHYSICS AND CHEMISTRY
ISSN0969-806X
Volume65Issue:3Pages:241
AbstractThe electron transfer from singlet states of hypocrellin A (HA) to colloidal TiO2 nanometer-sized particles has been examined by absorption, fluorescence quenching, fluorescence lifetime measurements, laser flash photolysis and pulse radiolysis techniques. Adsorption of HA onto the surface of TiO2 particles extended its absorption spectrum further into the visible region, and the apparent association constant (K-app) for the association between HA and colloidal TiO2 was 3600 (mol/l)(-1) determined by fluorescence quenching method. Fluorescence lifetime measurement was used to elucidate the process of electron transfer from the singlet state of HA to conduction band of TiO2 (K-et = 4.26 X 10(9) s(-1)). Laser flash photolysis and pulse radiolysis studies demonstrated formation of the radical cation of HA. (C) 2002 Elsevier Science Ltd. All rights reserved.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000178408400008
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/9954
Collection中科院上海原子核所2003年前
Recommended Citation
GB/T 7714
Zhou, ZX(,Qian, SP,Yao, SD,et al. Electron transfer in colloidal TiO2 semiconductors sensitized by hypocrellin A[J]. RADIATION PHYSICS AND CHEMISTRY,2002,65(3):241.
APA Zhou, ZX,Qian, SP,Yao, SD,&Zhang, ZY.(2002).Electron transfer in colloidal TiO2 semiconductors sensitized by hypocrellin A.RADIATION PHYSICS AND CHEMISTRY,65(3),241.
MLA Zhou, ZX,et al."Electron transfer in colloidal TiO2 semiconductors sensitized by hypocrellin A".RADIATION PHYSICS AND CHEMISTRY 65.3(2002):241.
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