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

Ag/g-C₃N₄复合材料可见光降解磺胺甲基嘧啶的效能及机理研究

1. 郑州轻工业大学材料与化学工程学院/环境污染治理与生态修复河南省协同创新中心, 河南郑州 450001;
2. 郑州大学生态与环境学院, 河南郑州 450001

作者简介: 宋亚丽(1988-),女,河南省开封市人,郑州轻工业大学讲师,博士,主要研究方向为光催化技术在水体修复中的应用.;

基金项目: 国家自然科学基金项目（22006139，52000162）；河南省重点研发与推广专项项目（202102310281，202102310278）；郑州轻工业大学博士基金项目（2018BSJJ023）
中图分类号: X703

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

CLC number: X703

摘要: 以g-C₃N₄为光催化材料，聚乙烯吡咯烷酮为抑制剂，采用光还原法合成了Ag/g-C₃N₄复合材料，考查其在可见光条件下降解磺胺甲基嘧啶的效能和机理.结果表明：在可见光照射下，Ag/g-C₃N₄复合材料对磺胺甲基嘧啶具有良好的降解效果，照射30 min后，磺胺甲基嘧啶的降解效率达97.3%；光生空穴和·O₂^-是降解磺胺甲基嘧啶的主要活性物质，在二者的作用下，磺胺甲基嘧啶的降解途径主要有S-N键断裂、苯环的羟基化、-NH₂的硝基化、-CH₃甲基的羧基化等.
- Ag/g-C₃N₄ /
- 可见光 /
- 磺胺甲基嘧啶 /
- 降解机理
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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沈阳化工大学材料科学与工程学院沈阳 110142

Ag/g-C₃N₄复合材料可见光降解磺胺甲基嘧啶的效能及机理研究

作者简介: 宋亚丽(1988-),女,河南省开封市人,郑州轻工业大学讲师,博士,主要研究方向为光催化技术在水体修复中的应用.;

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

计量

通讯作者: 陈斌, bchen63@163.com

Ag/g-C₃N₄复合材料可见光降解磺胺甲基嘧啶的效能及机理研究

作者简介:宋亚丽(1988-),女,河南省开封市人,郑州轻工业大学讲师,博士,主要研究方向为光催化技术在水体修复中的应用.

English Abstract

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

目录

Ag/g-C3N4复合材料可见光降解磺胺甲基嘧啶的效能及机理研究

作者简介: 宋亚丽(1988-),女,河南省开封市人,郑州轻工业大学讲师,博士,主要研究方向为光催化技术在水体修复中的应用.;

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

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通讯作者: 陈斌, bchen63@163.com

Ag/g-C3N4复合材料可见光降解磺胺甲基嘧啶的效能及机理研究

作者简介:宋亚丽(1988-),女,河南省开封市人,郑州轻工业大学讲师,博士,主要研究方向为光催化技术在水体修复中的应用.

English Abstract

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

目录

Ag/g-C₃N₄复合材料可见光降解磺胺甲基嘧啶的效能及机理研究

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

Ag/g-C₃N₄复合材料可见光降解磺胺甲基嘧啶的效能及机理研究

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