Photophysical and photochemical events during the photo sensitization of Hypocrellin A on a colloidal CdS semiconductor
文献类型：期刊论文
| 作者 | Zhou, ZX; Sun, ZY; Zhang, XK; Zhang, ZY |
| 刊名 | DYES AND PIGMENTS
 |
| 出版日期 | 2001-10-01 |
| 卷号 | 51期号:1页码:9-14 |
| 关键词 | Hypocrellin a Cds Colloidal Semiconductor Fluorescence Quenching Fluorescence Lifetime Epr Tempo Electron Transfer |
| ISSN号 | 0143-7208 |
| 英文摘要 | UV-visible spectroscopy, fluorescence quenching measurements, and single-photon counting have been employed to study electron transfer from excited Hypocrellin A (HA) into the conduction band of a colloidal US semiconductor. It has been determined that HA dye adsorbed on colloidal CdS with an apparent association constant of 940 (mol/l)(-1), and fluorescence lifetime measurements gave a rate constant of 5.16 x 10(9) s(-1) for the electron transfer process. The transferred electrons could be used to reduce the substrate 2,2,6,6-tetramethyl-1-piperdinyloxy (TEMPO). In this regard electron paramagnetic resonance spectroscopy was used to study the photoreduction of TEMPO by electrons in the US semiconductor. The results suggested that CdS photoreduction efficiency was enhanced by photosensitization of HA in visible region. (C) 2001 Elsevier Science Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000172113400002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76825]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, ZY |
| 作者单位 | 1.Acad Sinica, Inst Biophys, Beijing 100101, Peoples R China 2.Acad Sinica, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, ZX,Sun, ZY,Zhang, XK,et al. Photophysical and photochemical events during the photo sensitization of Hypocrellin A on a colloidal CdS semiconductor[J]. DYES AND PIGMENTS,2001,51(1):9-14. |
| APA | Zhou, ZX,Sun, ZY,Zhang, XK,&Zhang, ZY.(2001).Photophysical and photochemical events during the photo sensitization of Hypocrellin A on a colloidal CdS semiconductor.DYES AND PIGMENTS,51(1),9-14. |
| MLA | Zhou, ZX,et al."Photophysical and photochemical events during the photo sensitization of Hypocrellin A on a colloidal CdS semiconductor".DYES AND PIGMENTS 51.1(2001):9-14. |
入库方式： OAI收割
来源：化学研究所
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