期刊
MATERIALS RESEARCH BULLETIN
卷 70, 期 -, 页码 494-499出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2015.05.018
关键词
Composites; Surfaces; Chemical synthesis; Optical properties; Catalytic properties
资金
- Key NSFC project [U1401245]
- National Key Basic Research Program of China [2014CB660814]
- Program for Innovative Research Team in Chinese Universities [IRT1237]
- Research Project of Chinese Ministry of Education [213011A]
- Specialized Research Fund for the Doctoral Program of Higher Education [20122301110002]
- Science Foundation for Excellent Youth of Harbin City of China [2014RFYXJ002]
- Chinese government
We have synthesized different mass ratios of effectively-contacted TiO2/bulk g-C3N4 composites (T/CN) by a wet chemical method, and evaluated their photocatalytic activities for degrading acetaldehyde and producing H-2. It is clearly demonstrated by means of surface photovoltage responses and photoluminescence spectra that the photogenerated charge carriers in the T/CN nanocomposites with a proper mass ratio of T display much higher separation in comparison to CN alone. This is well responsible for the enhanced photocatalytic activities of CN after coupling with nanocrystalline anatase TiO2. Interestingly, it is also applicable to the resulting CN nanosheet (about 3 nm) with higher photoactivity than the bulk one. As a result, the TiO2/CN-nanosheet composites as efficient photocatalysts have been successfully developed. Moreover, it is confirmed that the enhanced photoactivity for resulting nanocomposites are attributed to the promoted charge transfer and separation from CN to TiO2. (C) 2015 Elsevier Ltd. 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