Preparation and Characterization of CdS/TiO2-Mt Composites with Enhanced Visible Light Photocatalytic Activity

被引：12
|
作者：
Wang, Zhihong [1 ]
Xu, Qianqian [1 ]
Meng, Tao [1 ]
Ren, Tiezhen [1 ]
Chen, Daimei [2 ]
机构：
[1] Hebei Univ Technol, Sch Chem Engn, Tianjin 300130, Peoples R China
[2] China Univ Geosci, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing 100083, Peoples R China
来源：
ENERGY AND ENVIRONMENT FOCUS | 2015年 / 4卷 / 02期
关键词：
CdS; TiO2; Photocatalysts; Visible Light; Montmorillonite;
D O I：
10.1166/eef.2015.1150
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The CdS/TiO2-montmorillonite (Mt) nanocomposites were prepared following a facile hydrothermal synthesis. The results show TiO2 and CdS particles were well distributed on the surface of Mt. CdS/TiO2-Mt nanocomposites have the delaminated structure with the three dimensional coaggregations of clay particles, Ti poly-oxycations and CdS crystallites. Anatase TiO2 and hexagonal CdS nanoparticles had been well dispersed and immobilized on the interior and exterior surface of Mt. The photocatalytic performances of the CdS/TiO2-Mt materials were evaluated by the degradation of methylene blue (MB) under visible light irradiation. The CdS/TiO2-Mt composite exhibited superior photocatalyic property and the maximum removal efficiency was up to 90% within 150 min. The enhanced photocatalytic activity of this composite is due to the sensitization by coupling TiO2 with CdS and a large specific surface area of Mt as a support.
引用
收藏
页码：149 / 156
页数：8
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