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Highly efficient activation of peroxymonosulfate by cobalt sulfide hollow nanospheres for fast ciprofloxacin degradation.
J Hazard Mater. 2020 05 05; 389:121856.JH

Abstract

We reported a facile preparation of CoS2, Co3S4, and Co9S8 hollow nanospheres (HNSs) and their use as peroxymonosulfate (PMS) activators for ciprofloxacin (CIP) degradation. The CIP degradation efficiency follows the order of CoS2 > Co3S4 > Co9S8. The Co2+ is proved to be active site for PMS activation and reactive oxygen species generation. The effect of operating parameters on performance of CoS2 HNSs/PMS system was explored. CoS2 HNSs exhibited highly catalytic activity in a wide pH range of 3 - 10. Complete removal of 10 mg/L CIP was achieved by CoS2 HNSs in 3 min at initial pH of 8.0 with 62.6% CIP mineralization. Three other organic pollutants (rhodamine B, methylene blue and tetracycline) were also degraded to evaluate the universality of the CoS2 HNSs/PMS system. The catalytic performance dropped in the presence of chloride, phosphate, nitrate ions and humic acid. Above 97% CIP removal was achieved even in the sixth run. The degradation pathway of CIP was proposed based on HPLC-MS/MS analysis of CIP intermediates, and two new intermediates, namely, C15H18O4N3F (m/z 323) and C29H31O4N6F (m/z 546), were identified for the first time. Both OH and SO4- were generated and the latter played a key role in CIP degradation.

Authors+Show Affiliations

Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Environment and Ecology, Chongqing University, Chongqing 400045, China.Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Environment and Ecology, Chongqing University, Chongqing 400045, China.Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Environment and Ecology, Chongqing University, Chongqing 400045, China.Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Environment and Ecology, Chongqing University, Chongqing 400045, China.Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Environment and Ecology, Chongqing University, Chongqing 400045, China. Electronic address: chaihx@cqu.edu.cn.Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China. Electronic address: yuminghuang2000@yahoo.com.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

31911017

Citation

Li, Wenqian, et al. "Highly Efficient Activation of Peroxymonosulfate By Cobalt Sulfide Hollow Nanospheres for Fast Ciprofloxacin Degradation." Journal of Hazardous Materials, vol. 389, 2020, p. 121856.
Li W, Li S, Tang Y, et al. Highly efficient activation of peroxymonosulfate by cobalt sulfide hollow nanospheres for fast ciprofloxacin degradation. J Hazard Mater. 2020;389:121856.
Li, W., Li, S., Tang, Y., Yang, X., Zhang, W., Zhang, X., Chai, H., & Huang, Y. (2020). Highly efficient activation of peroxymonosulfate by cobalt sulfide hollow nanospheres for fast ciprofloxacin degradation. Journal of Hazardous Materials, 389, 121856. https://doi.org/10.1016/j.jhazmat.2019.121856
Li W, et al. Highly Efficient Activation of Peroxymonosulfate By Cobalt Sulfide Hollow Nanospheres for Fast Ciprofloxacin Degradation. J Hazard Mater. 2020 05 5;389:121856. PubMed PMID: 31911017.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Highly efficient activation of peroxymonosulfate by cobalt sulfide hollow nanospheres for fast ciprofloxacin degradation. AU - Li,Wenqian, AU - Li,Siqi, AU - Tang,Yue, AU - Yang,Xinlu, AU - Zhang,Wenxuan, AU - Zhang,Xiaodan, AU - Chai,Hongxiang, AU - Huang,Yuming, Y1 - 2019/12/12/ PY - 2019/09/25/received PY - 2019/12/06/revised PY - 2019/12/08/accepted PY - 2020/1/9/pubmed PY - 2021/1/5/medline PY - 2020/1/9/entrez KW - Advanced oxidation KW - Ciprofloxacin KW - Cobalt sulfide hollow nanospheres KW - Peroxymonosulfate KW - Sulfate radical SP - 121856 EP - 121856 JF - Journal of hazardous materials JO - J Hazard Mater VL - 389 N2 - We reported a facile preparation of CoS2, Co3S4, and Co9S8 hollow nanospheres (HNSs) and their use as peroxymonosulfate (PMS) activators for ciprofloxacin (CIP) degradation. The CIP degradation efficiency follows the order of CoS2 > Co3S4 > Co9S8. The Co2+ is proved to be active site for PMS activation and reactive oxygen species generation. The effect of operating parameters on performance of CoS2 HNSs/PMS system was explored. CoS2 HNSs exhibited highly catalytic activity in a wide pH range of 3 - 10. Complete removal of 10 mg/L CIP was achieved by CoS2 HNSs in 3 min at initial pH of 8.0 with 62.6% CIP mineralization. Three other organic pollutants (rhodamine B, methylene blue and tetracycline) were also degraded to evaluate the universality of the CoS2 HNSs/PMS system. The catalytic performance dropped in the presence of chloride, phosphate, nitrate ions and humic acid. Above 97% CIP removal was achieved even in the sixth run. The degradation pathway of CIP was proposed based on HPLC-MS/MS analysis of CIP intermediates, and two new intermediates, namely, C15H18O4N3F (m/z 323) and C29H31O4N6F (m/z 546), were identified for the first time. Both OH and SO4- were generated and the latter played a key role in CIP degradation. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/31911017/Highly_efficient_activation_of_peroxymonosulfate_by_cobalt_sulfide_hollow_nanospheres_for_fast_ciprofloxacin_degradation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(19)31810-2 DB - PRIME DP - Unbound Medicine ER -