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Catalytic degradation of sulfamethoxazole by peroxymonosulfate activation system composed of nitrogen-doped biochar from pomelo peel: Important roles of defects and nitrogen, and detoxification of intermediates

文献类型：期刊论文

作者Wang, Wenqi1,2; Chen, Ming1,2,3
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
出版日期2022-05-01
卷号613页码:57-70
关键词Pomelo peel-derived biochar Nitrogen doping Sulfamethoxazole PMS Defects Phytotoxicity
ISSN号0021-9797
DOI10.1016/j.jcis.2022.01.006
通讯作者Chen, Ming(mchensn@hnu.edu.cn)
英文摘要Nitrogen doping could improve the catalytic performance of carbon materials, in which the nitrogen configuration could be used as active sites for peroxymonosulfate (PMS) activation. Herein, this paper studied how to turn waste to "treasure" by agriculture waste pomelo peel to prepare nitrogen-doped biochar and successfully applied it to advanced oxidation field. The effects of the sodium bicarbonate (NaHCO3), melamine, and pyrolysis temperature on the catalytic activity of biochar for the removal of sulfamethoxazole (SMX) were investigated. The optimized nitrogen-doped biochar (C-N-M 1:3:4) possessed high specific surface area (SSA, 738 m(2)/g) and high level of nitrogen doping (nitrogen content 13.54 at%). Accordingly, it exhibited great catalytic performance for PMS activation to remove SMX antibiotic, and 95% of SMX was removed within 30 min. High catalytic activity of C-N-M 1:3:4 was attributed to rich defects, carbonyl group, high content of graphitic N and pyrrolic N, and large SSA, in which non-radical oxidation process based on singlet oxygen (O-1(2)) and electron transfer contributed to the SMX degradation. The prepared nitrogen-doped biochar possessed high stability and reusability and the removal efficiency of SMX still reached 80% after four cycles. Additionally, the phytotoxicity assay indicated that the toxicity of degradation intermediates was obviously decreased in the PMS/C-N-M 1:3:4 system. (C) 2022 Elsevier Inc. All rights reserved.
资助项目National Natural Science Foundation of China[52170060] ; Science and technology program of Inner Mongolia Autonomous Region[2021GG0089] ; Chongqing Water Resources Bureau[5000002021BF40001] ; Natural Science Foundation of Chongqing, China[cstc2021jcyj-msxmX0163]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000750542800006
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
源URL[http://119.78.100.138/handle/2HOD01W0/15089]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Chen, Ming
作者单位1.Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Peoples R China
2.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China
3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Wenqi,Chen, Ming. Catalytic degradation of sulfamethoxazole by peroxymonosulfate activation system composed of nitrogen-doped biochar from pomelo peel: Important roles of defects and nitrogen, and detoxification of intermediates[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2022,613:57-70.
APA Wang, Wenqi,&Chen, Ming.(2022).Catalytic degradation of sulfamethoxazole by peroxymonosulfate activation system composed of nitrogen-doped biochar from pomelo peel: Important roles of defects and nitrogen, and detoxification of intermediates.JOURNAL OF COLLOID AND INTERFACE SCIENCE,613,57-70.
MLA Wang, Wenqi,et al."Catalytic degradation of sulfamethoxazole by peroxymonosulfate activation system composed of nitrogen-doped biochar from pomelo peel: Important roles of defects and nitrogen, and detoxification of intermediates".JOURNAL OF COLLOID AND INTERFACE SCIENCE 613(2022):57-70.

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来源：重庆绿色智能技术研究院

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