Ag/g-C<sub>3</sub>N<sub>4</sub>复合材料可见光降解磺胺甲基嘧啶的效能及机理研究

宋亚丽; 李帅斌; 李紫燕; 黄龙; 谢君豪; 韩龙; 张宏忠

doi:10.12187/2021.06.012

December 2021

Article Contents

SONG Yali, LI Shuaibin, LI Ziyan, et al. Degradation effect and mechanism of sulfamerazine by Ag/g-C3N4 under visible light irradiation[J]. Journal of Light Industry, 2021, 36(6): 102-109. doi: 10.12187/2021.06.012

Citation: SONG Yali, LI Shuaibin, LI Ziyan, et al. Degradation effect and mechanism of sulfamerazine by Ag/g-C3N4 under visible light irradiation[J]. Journal of Light Industry, 2021, 36(6): 102-109. doi: 10.12187/2021.06.012 shu

Degradation effect and mechanism of sulfamerazine by Ag/g-C₃N₄ under visible light irradiation

1. College of Material and Chemical Engineering/He'nan Collaborative Innovation Centre of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China;
2. College of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China

Received Date: 2020-10-07
Accepted Date: 2021-03-18

Abstract

Ag/g-C₃N₄ was synthesized by a photo-reduction method in the presence of g-C₃N₄ as the photocatacytic material and polyvinylpyrrolidone as an inhibitor. The degradation effect and mechanism of sulfamerazine by Ag/g-C₃N₄ was studied in the presence of visible lightir irradiation. The results indicated that sulfamerazine could be effectively degraded by Ag/g-C₃N₄. The degradation rate of sulfamerazine was 97. 3% after being irradiated for 30 min. Photogenerated hole and ·O₂^- were the main active species, which could regrade sulfamerazine by the cleavage of S-N bond, the hydroxylation of the benzene ring, the nitration of amino and the carboxylation of methyl.
- Ag/g-C₃N₄,
- visible light irradiation,
- sulfamerazine,
- mechanism of degradation
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