高等学校化学学报 ›› 2025, Vol. 46 ›› Issue (3): 20240358.doi: 10.7503/cjcu20240358

• 研究论文: 无机化学 • 上一篇    下一篇

原位Cu络合调控类芬顿氧化强化水体痕量喹诺酮的选择性净化

曾湘楚1,2,3, 丁以宣1,2,3, 武哲1,2,3, 汪艳平1,2,3(), 刘牧4   

  1. 1.广西现代蚕桑丝绸协同创新中心
    2.广西蚕桑生态学与智能化技术应用重点实验室
    3.微生物及植物资源开发利用广西高校重点实验室, 河池学院化学与生物工程学院, 河池 546300
    4.陕西邦希化工有限公司, 西安 710000
  • 收稿日期:2024-07-18 出版日期:2025-03-10 发布日期:2024-11-19
  • 通讯作者: 汪艳平 E-mail:wangyanpingdy@163.com
  • 基金资助:
    中国博士后科学基金(2024M751271);河池市本级财政科技计划项目(批准号: 河科AC231107)、 河池学院高层次人才科研启动项目(2023GCC015);广西现代蚕桑丝绸协同创新中心开放课题(2023GXCSSC03);广西高校中青年教师科研基础能力提升项目(2024KY0623)

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)

摘要:

废水中喹诺酮类抗生素作为新污染物引起了广泛的关注, 而选择性净化是解决此问题的有效方法之一. 本文提出了一种铜络合物活化过氧单硫酸盐(PMS)的均相类Fenton氧化体系, 用于去除水体微量喹诺酮(QNs). 在较宽的pH范围内, 99%以上的QNs在60 min内可被降解, 且免受天然有机质(质量分数高达1%)和各种阴离子(质量分数高达20%)的影响. Cu(Ⅱ)-QNs络合物活化PMS伴随Cu(Ⅲ)-QNs络合物的原位生成, 通过分子内电子转移过程促进了QNs的选择性氧化. 所产生的Cu(Ⅲ)和·OH在QNs的降解中起到主要和次要作用.

关键词: 原位络合, 类芬顿氧化, 选择性净化, 微量喹诺酮, 过硫酸盐

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

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