波谱学杂志 ›› 1994, Vol. 11 ›› Issue (1): 107-111.

• 研究论文 • 上一篇    下一篇

共胶体系光反应产生的自由基研究

杨俊林, 陆道惠, 徐广智   

  1. 中国科学院化学研究所, 北京分子动态及稳态结构国家实验室, 北京 100080
  • 收稿日期:1993-01-29 修回日期:1993-04-20 出版日期:1994-03-05 发布日期:2018-01-20

STUDY OF FREE RADICALS GENERATED IN THE PHOTOREACTION OF Co-COLLOIDAL SYSTEM

Yang Junlin, Lu Daohui, Xu Guangzhi   

  1. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080
  • Received:1993-01-29 Revised:1993-04-20 Online:1994-03-05 Published:2018-01-20

摘要: 制备了硫化镉(CdS)与二氧化钛(TiO2)的共胶(CdS-TiO2/(NaPO3)6).首次用荧光光谱和自旋捕捉-ESR技术研究了共胶体系的电荷分离状态及共胶体系中光诱导化学反应产生的活泼自由基中间体。

关键词: ESR, 自旋捕捉, 荧光, 共胶

Abstract: Co-colloidald CS-TIO2,stabilized with sodium hexameatPhosPhate was PrePared. The charge-transfer state and the free radical intermediates aPPcared during illumination of co-colloidal CdS-TIO2 were studied by using teehniques of fluoresene and spin tarpping-ESR.It is coneluded that some Photorcaetions in co-colloidal system can carry out more efeetively than those insingle colloidal sys-tem.

Key words: ESR, Spin trapping, Fluoreseence, Co-colloid