增强四环素的光解通过Zn(II):复合的作用
Chang Xu1, Shan Zhao1, Shu-Guang Wang2
1Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, China; Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, China.
The Science of the total environment
|November 16, 2023
概括
(II) 通过增加活性氧物种和形成更脆弱的复合体,增强水生环境中的四环素 (TC) 光降解. 这项研究揭示了对抗生素命运和废水处理的见解.
科学领域:
- 环境化学环境化学
- 摄影化学的使用.
- 水生化学 水生化学
背景情况:
- 在抗生素生产和水产养殖中是必不可少的,导致其与废水中的抗生素存在.
- 在存在时抗生素的光化学行为还不太清楚,这阻碍了对抗生素环境命运的了解.
研究的目的:
- 调查Zn(II) 对四环素 (TC) 光解的作用.
- 阐明Zn(II) 诱导的TC光降解的潜在机制.
- 确定中间体并评估它们的毒性.
主要方法:
- 用不同的TC:Zn(II) 摩尔比率进行光解实验.
- 反应性氧物种 (ROS) 分析.
- 密度函数理论 (DFT) 的计算.
- 质谱,TEST和ECOSAR软件用于中间识别和毒性评估.
主要成果:
- 在1:5的摩尔比率下,Zn (II) 的添加加速了TC的去除22.75%.
- Zn(II) 增加了12.54%的单片氧气形成,并促进了TC复杂化,增加了对ROS攻击的脆弱性.
- 降解途径保持相似,但中间体被发现比TC更有毒.
结论:
- Zn(II) 通过增强ROS的产生和复杂化,显著促进TC光降解.
- 该研究提供了对抗生素环境命运的关键见解,并为制药和水产养殖行业的废水处理策略提供了信息.
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