期刊
CATALYSIS COMMUNICATIONS
卷 11, 期 14, 页码 1104-1108出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2010.05.021
关键词
ZnGa2O4; Photocatalysis; Methylene blue; Degradation; Cd doping
资金
- National Basic Research Program of China [2007CB613306]
- Program for New Century Excellent Talents in the University of China [NCET-06-0179]
- Fok Ying Tong Education Foundation [111050]
ZnGa2O4 powder catalysts, synthesized by a sol-gel process, exhibit high photocatalytic activity for methylene blue (MB) degradation. The pH value at the point of zero charge (pH(pzc)) was determined to be 5.9 by a titrations method and MB conversion increased with the increase of the pH value. The valence and conduction band positions were determined at 3.35 V and -1.45 V (Normal Hydrogen Electrode, NHE), respectively, indicating high photocatalytic ability. Improved photocatalytic efficiency was achieved by substituting cadmium for zinc in the ZnGa2O4. The improvement can be attributed to high UV absorption efficiency and high separation of photogenerated electron-hole pairs. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据