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  

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

作　　者：曾湘楚 丁以宣 武哲 汪艳平 刘牧 ZENG Xiangchu;DING Yixuan;WU Zhe;WANG Yanping;LIU Mu(Guangxi Collaborative Innovation Center of Modern Sericulture and Silk,Hechi University,Hechi 546300,China;Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology,Hechi University,Hechi 546300,China;Guangxi Colleges Universites Key Laboratory of Exploitation and Utilization of Microbial and Botanical Resource,School of Chemistry and Bioengineering,Hechi University,Hechi 546300,China;Shaanxi Bangxi Chemical Co.,Ltd.,Xi’an 710000,China)

机构地区：[1]广西现代蚕桑丝绸协同创新中心,河池546300 [2]广西蚕桑生态学与智能化技术应用重点实验室,河池546300 [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

出　　处：《高等学校化学学报》2025年第3期11-24,共14页Chemical Journal of Chinese Universities

基　　金：中国博士后科学基金(批准号: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(批准号:2023GCC015);广西现代蚕桑丝绸协同创新中心开放课题(批准号:2023GXCSSC03);广西高校中青年教师科研基础能力提升项目(批准号:2024KY0623)资助。

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p H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.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.

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 

分 类 号：O611.2[理学—无机化学] O614.12[理学—化学]