Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| Electron transfer in colloidal TiO2 semiconductors sensitized by hypocrellin A | |
| Zhou, ZX（; Qian, SP; Yao, SD（姚思德）; Zhang, ZY | |
| 2002 | |
| Source Publication | RADIATION PHYSICS AND CHEMISTRY
 |
| ISSN | 0969-806X |
| Volume | 65Issue:3Pages:241 |
| Abstract | The 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 By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000178408400008 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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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