反胶束法原位合成P25-MPTMS-CdS及光化学性能研究

doi:10.7517/j.issn.1674-0475.2004.04.244

影像科学与光化学 ›› 2004, Vol. 22 ›› Issue (4): 244-250.DOI: 10.7517/j.issn.1674-0475.2004.04.244

反胶束法原位合成P25-MPTMS-CdS及光化学性能研究

朱伊萍, 张金龙

华东理工大学, 精细化工研究所, 上海, 200237

收稿日期:2003-12-21 出版日期:2004-07-23 发布日期:2004-07-23
通讯作者: 张金龙, 男, 教授, 博士生导师.

In-situ Synthesis of P25-MPTMS-CdS by Reverse Micellar Method and Study on Their Photochemical Properties

ZHU Yi-ping, ZHANG Jin-long

Institute of Fine Chemicals. East China University of Science and Technology, Shanghai 200237, P.R. China

Received:2003-12-21 Online:2004-07-23 Published:2004-07-23

摘要/Abstract

摘要： 本文将反胶束法制备的CdS晶体键合在经γ-巯丙基三甲氧基硅(MPTMS)修饰的P25粒子的表面.产物P25-MPTMS-CdS复合粒子的紫外-可见吸收和粒子形貌分别用漫反射光谱仪和透射电镜进行了表征.同时也进行了光催化降解甲基橙溶液的实验,发现P25-MPTMS-CdS在紫外和可见光下区域都具备较高的光催化活性.经过18h的可见光照后(λ>400nm),紫外-可见光谱表明,P25-MPTMS-CdS粒子具备较好的光稳定性.

关键词: P25-MPTMS-CdS, 反胶束法, 硅烷偶联剂, 复合半导体, 光催化

Abstract: CdS nanocrystallites prepared in reverse micellar systems were immobilized onto P25 particles which had been modified by 3-mercaptopropyltrimethoxysilane(MPTMS).The resulting P25-MPTMS-CdS particles were characterized by UV-Vis spectra and TEM.Their photocatalytic activity for the degradation of methyl orange dye was investigated.The results indicate P25-MPTMS-CdS photocatalysts have high photocatalytic activities both within UV and visible range.After 18 h of photoirradiation(λ>400 nm),the UV-Vis spectra show that CdS nanoparticles are well resist to photoirradiation,and have good photostability.

Key words: P25-MPTMS-CdS, reverse micellar, silylation agent, composite semiconductor, photocatalysis

中图分类号:

朱伊萍, 张金龙. 反胶束法原位合成P25-MPTMS-CdS及光化学性能研究[J]. 影像科学与光化学, 2004, 22(4): 244-250.

ZHU Yi-ping, ZHANG Jin-long. In-situ Synthesis of P25-MPTMS-CdS by Reverse Micellar Method and Study on Their Photochemical Properties[J]. Imaging Science and Photochemistry, 2004, 22(4): 244-250.

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反胶束法原位合成P25-MPTMS-CdS及光化学性能研究

In-situ Synthesis of P25-MPTMS-CdS by Reverse Micellar Method and Study on Their Photochemical Properties

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