| 反胶束法原位合成P25-MPTMS-CdS及光化学性能研究 |
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| 引用本文： | 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. |
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| 作者姓名： | 朱伊萍 张金龙 |
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| 作者单位： | 华东理工大学, 精细化工研究所, 上海, 200237 |
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| 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.
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| 关 键 词： | P25-MPTMS-CdS 反胶束法 硅烷偶联剂 复合半导体 光催化 |
| 收稿时间： | 2003-12-21 |
In-situ Synthesis of P25-MPTMS-CdS by Reverse Micellar Method and Study on Their Photochemical Properties |
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| 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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| Authors: | ZHU Yi-ping ZHANG Jin-long |
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| Institution: | Institute of Fine Chemicals. East China University of Science and Technology, Shanghai 200237, P.R. China |
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| 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. |
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| Keywords: | P25-MPTMS-CdS reverse micellar silylation agent composite semiconductor photocatalysis |
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