PANI/GO和Sm联合修改的Ti/PbO2对高效的阿莫西西林降解具有维度稳定的阳极:性能评估,影响参数和降解机制
Zeyi Wang1, Luyao Zhang1, Rong Su2
1School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, PR China.
Journal of environmental management
|June 18, 2024
概括
一个新型电极在废水中有效降解阿莫西西林 (AMX). 这种可持续技术为消除制药污染物和保护环境和人类健康提供了有希望的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
背景情况:
- 抗生素污染对环境和健康构成重大风险.
- 开发高效和可持续的废水处理技术至关重要.
- 传统的方法难以完全去除制药污染物.
研究的目的:
- 开发一种用于有效降解氨基素 (AMX) 的新型电极.
- 为了研究同修改的Ti/PbO2电极的性能.
- 探索抗生素污染废水处理的可持续解决方案.
主要方法:
- 使用一步电沉积方法,制备聚氨酸/石墨氧化物 (PANI/GO) 和 (Sm) 联合修改的Ti/PbO2电极 (Ti/PbO2-PANI/GO-Sm).
- 评估了电化学性能,包括氧气演变潜力和使用寿命.
- 在优化条件下进行了降解实验,以评估AMX和化学氧气需求去除效率.
- 捕获实验和LC-MS被用来阐明降解机制.
主要成果:
- 与传统的Ti/PbO2-PANI/GO-Sm电极相比,Ti/PbO2-PANI/GO-Sm电极显示出优越的氧气演变潜力 (2.63V) 和更长的使用寿命 (56小时).
- 在优化条件下,电极在90分钟内实现了88.76%的AMX去除和79.92%的化学氧气需求去除.
- 捕获实验证实了基基 (·OH) 在降解过程中的重要作用.
- 理论计算和LC-MS分析表明,AMX的异环部分优先受到OH基的攻击.
结论:
- 开发的Ti/PbO2-PANI/GO-Sm电极是一种高效和可持续的材料,用于降解废水中的阿莫西西林.
- 电极的增强性能归因于PANI/GO和Sm修改的协同效应.
- 这种新型电极为解决抗生素污染废水带来的环境挑战提供了可行的解决方案.
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