CAS OpenIR  > 中科院上海原子核所2003年前
Photo sensitization of a colloidal TiO2 semiconductor system with hypocrellin B
Zhou, ZX; Qian, SP(钱素萍); Yao, SD(姚思德); Zhang, ZY
2001
Source PublicationDYES AND PIGMENTS
ISSN0143-7208
Volume51Issue:40942Pages:137
AbstractThe adsorption of hypocrellin B (HB) on the surface of TiO2 colloidal particles and the electron transfer process from its singlet excited state to the conduction band of TiO2 were examined by absorption, fluorescence quenching. fluorescence lifetime measurements, laser flash photolysis and pulse radiolysis techniques. Adsorption of HB onto the surface of colloidal TiO2 particle led to red-shifted absorption, and the apparent association constant (K-app) was 3145 (mol/l)(-1) from fluorescence quenching. Exciting HB with visible light could induce electron transfer from its singlet excited state into conduction band of TiO2 (K-et = 4.93 x 10(9) s(-1)). Laser flash photolysis and pulse radiolysis studies demonstrated the formation of radical cation of HB. (C) 2001 Elsevier Science Ltd. All rights reserved.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000172497700009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/10095
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. Photo sensitization of a colloidal TiO2 semiconductor system with hypocrellin B[J]. DYES AND PIGMENTS,2001,51(40942):137.
APA Zhou, ZX,Qian, SP,Yao, SD,&Zhang, ZY.(2001).Photo sensitization of a colloidal TiO2 semiconductor system with hypocrellin B.DYES AND PIGMENTS,51(40942),137.
MLA Zhou, ZX,et al."Photo sensitization of a colloidal TiO2 semiconductor system with hypocrellin B".DYES AND PIGMENTS 51.40942(2001):137.
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