A novel AgI/AgIO3 heterojunction with enhanced photocatalytic activity for organic dye removal
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- 作者：Qian Wen Cao ; Yi Fan Zheng ; Hao Yong Yin ; Xu Chun Song
- 刊名：Journal of Materials Science
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：51
- 期：9
- 页码：4559-4565
- 全文大小：2,090 KB
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Yi Fan Zheng (2)
Hao Yong Yin (3)
Xu Chun Song (1)
1. Department of Chemistry, Fujian Normal University, Fuzhou, 350007, People’s Republic of China
2. Research Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou, 310014, People’s Republic of China
3. Institute of Environmental Science and Engineering, Hangzhou Dianzi University, Hangzhou, 310018, People’s Republic of China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Materials Science
Characterization and Evaluation Materials
Polymer Sciences
Continuum Mechanics and Mechanics of Materials
Crystallography
Mechanics - 出版者：Springer Netherlands
- ISSN：1573-4803
文摘
A novel AgI/AgIO3 heterojunction photocatalyst was prepared through a mild ion-exchange method at room temperature. Their photocatalytic activities were assessed by the photodegradation of rhodamine B (RhB) under simulated solar light. The AgI/AgIO3 composites performed better photocatalytic activities than pure AgI and AgIO3 with 15 % AgI/AgIO3 heterojunction showing the highest photocatalytic efficiency among all the heterojunction samples. Moreover, the 15 % AgI/AgIO3 hybrid photocatalyst also showed excellent repeatability and stability during photocatalytic reaction. The improvement of photocatalytic performance can be attributed to effective separation of photoexcited electrons and holes at the interface of AgI/AgIO3 composites. Radical trap experiments determined that the O2·− radical was the main reactive species for the photodegradation of RhB.