Heterogeneous activation of peroxymonosulfate by a biochar-supported Co3O4 composite for efficient degradation of chloramphenicols
Xu, HD; Zhang, YC; Li, JJ; Hao, QQ; Li, X; Liu, FH
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
2020-02
Volume257Pages:113610
KeywordCo3O4-BC Peroxymonosulfate Chloramphenicols Sulfate radical
MOST Discipline CatalogueEnvironmental Sciences
DOI10.1016/j.envpol.2019.113610
Contribution Rank[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
Department海岸带生物学与生物资源保护实验室
AbstractHerein, 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.
Funding OrganizationNatural 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]
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordCATALYZED PEROXYMONOSULFATE ; WASTE-WATER ; SELECTIVE DEGRADATION ; PHENOLIC-COMPOUNDS ; RESISTANCE GENES ; BISPHENOL-A ; POLLUTANTS ; PERSULFATE ; OXIDATION ; SYSTEM
WOS Research AreaEnvironmental Sciences
WOS IDWOS:000514746800110
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/24759
Collection海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Utilizat, Yantai 264003, Shandong, Peoples R China;
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China;
3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China;
4.Jiangnan Univ, Jiangsu Key Lab Anaerob Biotechnol, Wuxi 214122, Jiangsu, Peoples R China;
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
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.
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