| 三维有序大孔CdS/TiO2薄膜的制备及其可见光催化性能 |
| |
| 引用本文： | 陈晓芳,张佳,霍宇凝,李和兴.三维有序大孔CdS/TiO2薄膜的制备及其可见光催化性能[J].催化学报,2013,34(5):949-955. |
| |
| 作者姓名： | 陈晓芳 张佳 霍宇凝 李和兴 |
| |
| 作者单位： | 上海师范大学化学系, 上海 200234 |
| |
| 基金项目： | 国家自然科学基金(20937003,21261140333,21237003,21207091);上海市科委项目(11JC1409000,12230706000);上海市教委创新项目(12YZ091)~~ |
| |
| 摘 要： | 采用胶体晶体模板辅助溶胶-凝胶法以及S2-离子交换法合成了三维有序大孔CdS/TiO2膜.结果表明,该薄膜材料在可见光催化降解污染水中罗丹明B和对氯苯酚的反应中表现出高活性.这可归因于修饰剂CdS的光敏化作用实现可见光催化,CdS-TiO2之间形成了异质结,促进了电子和空穴的分离; 另一方面,有序大孔结构有利于光的利用以及反应物的扩散和吸附.
|
| 关 键 词： | 硫化镉/二氧化钛薄膜 三维有序大孔结构 可见光 光催化 |
| 收稿时间： | 2013-01-06 |
Preparation and visible light catalytic activity of three-dimensional ordered macroporous CdS/TiO2 films |
| |
| CHEN Xiaofang, ZHANG Jia, HUO Yuning , LI Hexing.Preparation and visible light catalytic activity of three-dimensional ordered macroporous CdS/TiO2 films[J].Chinese Journal of Catalysis,2013,34(5):949-955. |
| |
| Authors: | CHEN Xiaofang ZHANG Jia HUO Yuning LI Hexing |
| |
| Institution: | Department of Chemistry, Shanghai Normal University, Shanghai 200234, China |
| |
| Abstract: | A three-dimensional ordered macroporous CdS/TiO2 film was prepared by the sol-gel method with a colloidal crystal template and S2- ion exchange, and it exhibited high visible light photocatalytic activity for the aqueous degradation of rhodamine B and 4-chlorophenol. The modification with CdS gave visible light absorption by photosensitization and better separation of photo-induced electrons and holes. The ordered macroporous structure gave higher light utilization and faster reactant transport. |
| |
| Keywords: | CdS/TiO2 film Three-dimensional ordered macro-porous structure Visible light Photocatalysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《催化学报》浏览原始摘要信息 |
| 点击此处可从《催化学报》下载免费的PDF全文 |
