三维有序大孔CdS/TiO2薄膜的制备及其可见光催化性能

催化学报 , 2013, 34(5): 949-955. doi: 10.1016/S1872-2067(12)60560-9

三维有序大孔CdS/TiO2薄膜的制备及其可见光催化性能

1.上海师范大学化学系,上海200234

2.上海师范大学化学系,上海200234

3.上海师范大学化学系,上海200234

4.上海师范大学化学系,上海200234

基金项目: National Natural Science Foundation of China(20937003,21261140333,21237003,and 21207091) 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) Shanghai Government(11JC1409000,12230706000,and 12YZ091)

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

Preparation and visible light catalytic activity of three-dimensional ordered macroporous CdS/TiO2 films

CHEN Xiaofang ^1, , ZHANG Jia ^2, , HUO Yuning ^3, , LI Hexing ^4,

1.上海师范大学化学系,上海200234

2.上海师范大学化学系,上海200234

3.上海师范大学化学系,上海200234

4.上海师范大学化学系,上海200234

Keywords： CdS/TiO2 film , Three-dimensional ordered , macroporous structure , Visible light

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.

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