Heterogeneous activation of peroxymonosulfate by a biochar-supported Co3O4 composite for efficient degradation of chloramphenicols
文献类型：期刊论文
| 作者 | Xu, HD; Zhang, YC; Li, JJ; Hao, QQ; Li, X; Liu, FH
|
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2020-02 |
| 卷号 | 257页码:113610 |
| 关键词 | Co3O4-BC Peroxymonosulfate Chloramphenicols Sulfate radical |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2019.113610 |
| 产权排序 | [Xu, Hengduo ; Zhang, Yuechao ; Li, Jiajia ; Hao, Qinqin ; Li, Xin ; Liu, Fanghua] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Utilizat, Yantai 264003, Shandong, Peoples R China ; [Xu, Hengduo ; Liu, Fanghua] Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China ; [Xu, Hengduo ; Liu, Fanghua] Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China ; [Xu, Hengduo] Jiangnan Univ, Jiangsu Key Lab Anaerob Biotechnol, Wuxi 214122, Jiangsu, Peoples R China ; [Zhang, Yuechao ; Li, Jiajia ; Hao, Qinqin ; Li, Xin] Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 文献子类 | Article |
| 英文摘要 | Herein, a new peroxymonosulfate (PMS) activation system was established using a biochar (BC)-supported Co3O4 composite (Co3O4-BC) as a catalyst to enhance chloramphenicols degradation. The effects of the amount of Co3O4 load on the BC, Co3O4-BC amount, PMS dose and solution pH on the degradation of chloramphenicol (CAP) were investigated. The results showed that the BC support could well disperse Co3O4 particles. The degradation of CAP (30 mg/L) was enhanced in the Co3O4-BC/PMS system with the apparent degradation rate constant increased to 5.1, 19.4 and 7.2 times of that in the Co3O4/PMS, BC/PMS and PMS-alone control systems, respectively. Nearly complete removal of CAP was achieved in the Co3O4-BC/PMS system under the optimum conditions of 10 wt% Co3O4 loading on BC, 0.2 g/L. Co3O4-BC, 10 mM PMS and pH 7 within 10 min. The Co3O4/BC composites had a synergistic effect on the catalytic activity possibly because the conducting BC promoted electron transfer between the Co species and HSO5- and thus accelerated the Co3+/Co(2+)redox cycle. Additionally, over 85.0 +/- 1.5% of CAP was still removed in the 10th run. Although both SO4 center dot- and OH center dot were identified as the main active species, SO4 center dot- played a dominant role in CAP degradation. In addition, two other chloramphenicols, i.e., florfenicol (FF) and thiamphenicol (TAP), were also effectively degraded with percentages of 86.4 +/- 13% and 71.8 +/- 1.0%, respectively. This study provides a promising catalyst Co3O4-BC to activate PMS for efficient and persistent antibiotics degradation. (C) 2019 Elsevier Ltd. All rights reserved. |
| WOS关键词 | CATALYZED PEROXYMONOSULFATE ; WASTE-WATER ; SELECTIVE DEGRADATION ; PHENOLIC-COMPOUNDS ; RESISTANCE GENES ; BISPHENOL-A ; POLLUTANTS ; PERSULFATE ; OXIDATION ; SYSTEM |
| WOS研究方向 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000514746800110 |
| 资助机构 | Natural Science Foundation of ChinaNational Natural Science Foundation of China [51908542, 91751112, 41573071] ; Postdoctoral Science of China [2018M632735] ; Open Fund of Jiangsu Key Laboratory of Anaerobic Biotechnology (Jiangnan University) [JKLAB201705] ; Shandong Provincial Natural Science FoundationNatural Science Foundation of Shandong Province [JQ201608] ; Young Taishan Scholars Program [tsqn20161054] |
| 源URL | [http://ir.yic.ac.cn/handle/133337/24759]  |
| 专题 | 烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室 |
| 作者单位 | 1.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China; 2.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Jiangnan Univ, Jiangsu Key Lab Anaerob Biotechnol, Wuxi 214122, Jiangsu, Peoples R China; 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Utilizat, Yantai 264003, Shandong, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Xu, HD,Zhang, YC,Li, JJ,et al. Heterogeneous activation of peroxymonosulfate by a biochar-supported Co3O4 composite for efficient degradation of chloramphenicols[J]. ENVIRONMENTAL POLLUTION,2020,257:113610. |
| APA | Xu, HD,Zhang, YC,Li, JJ,Hao, QQ,Li, X,&Liu, FH.(2020).Heterogeneous activation of peroxymonosulfate by a biochar-supported Co3O4 composite for efficient degradation of chloramphenicols.ENVIRONMENTAL POLLUTION,257,113610. |
| MLA | Xu, HD,et al."Heterogeneous activation of peroxymonosulfate by a biochar-supported Co3O4 composite for efficient degradation of chloramphenicols".ENVIRONMENTAL POLLUTION 257(2020):113610. |
入库方式： OAI收割
来源：烟台海岸带研究所
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