Chem. J. Chinese Universities ›› 2025, Vol. 46 ›› Issue (3): 20240358.doi: 10.7503/cjcu20240358

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

In situ Cupric Complexation Regulated Fenton-like Oxidation to Enhance the Selective Decontamination of Trace Aqueous Quinolones

ZENG Xiangchu1,2,3, DING Yixuan1,2,3, WU Zhe1,2,3, WANG Yanping1,2,3(), LIU Mu4   

  1. 1.Guangxi Collaborative Innovation Center of Modern Sericulture and Silk
    2.Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology
    3.Guangxi Colleges Universites Key Laboratory of Exploitation and Utilization of Microbial and Botanical Resource,School of Chemistry and Bioengineering,Hechi University,Hechi 546300,China
    4.Shaanxi Bangxi Chemical Co. ,Ltd. ,Xi’an 710000,China
  • Received:2024-07-18 Online:2025-03-10 Published:2024-11-19
  • Contact: WANG Yanping E-mail:wangyanpingdy@163.com
  • Supported by:
    the China Postdoctoral Science Foundation(2024M751271);the Hechi City Level Financial Science and Technology Plan Project, China(HekeAC231107);the Hechi University High-level Talent Research Project(2023GCC015);the Special Project of Guangxi Collaborative Innovation Center of Modern Sericulture and Silk, China(2023GXCSSC03);the Guangxi University Young and Middle-aged Teachers Research Basic Ability Improvement Project, China(2024KY0623)

Abstract:

As one of the emerging aqueous contaminants, quinolones have attracted extensive attention, and selective decontamination is one of the effective methods to solve this setbacks. Therefore, a homogeneous Fenton-like oxidation system of cupric complexes activated peroxymonosulfate(PMS) was proposed for the removal of trace quinolones(QNs) from water. Over a wide pH range, over 99% of QNs can be degraded within 60 min, but they are also free from the influence of natural organic matter(up to 1%) and various anions(up to 20%). The activation of peroxymonosulfate by cupric complexes coupling Cu(Ⅲ) complexes generation in situ promoted an intramolecular electron transfer featuring selective oxidation of QNs. The generated Cu(Ⅲ) and ·OH played the primary and secondary role in the degradation of QNs, respectively. This work provides a successful case and feasibility for the selective decontamination of trace antibiotics via cupric complexes activated PMS Fenton-like oxidation system.

Key words: In situ complexation, Fenton-like oxidation, Selective decontamination, Trace level of quinolone, Persulfate

CLC Number: 

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