通过使用不同的阳极材料和石墨阴极进行阳极氧化去除fluoxetine
Hanife Sari Erkan1, Deniz Kaska1, Narin Kara1
1Faculty of Civil Engineering, Department of Environmental Engineering, Yildiz Technical University, Istanbul, Turkey.
Environmental technology
|January 18, 2024
概括
电化学氧化有效地从水中去除素 (FLX). 和二氧化电极在降解这种常见的SSRI药物方面表现优于金.
科学领域:
- 环境化学环境化学
- 电化学 电化学 电化学
- 水处理技术水处理技术
背景情况:
- 富洛丁 (FLX) 是一种被广泛处方的SSRI,由于代谢不完整和处置不当,它会给环境带来风险.
- 水生环境中的制药残留物可能会破坏生态系统,并可能影响人类健康.
研究的目的:
- 研究使用混合金属氧化物阳极用于从水和废水中去除FLX的电化学阳极氧化功效.
- 为了确定最佳的操作条件,并比较不同的电极材料对FLX降解的性能.
主要方法:
- 采用电化学的阳极氧化方法,使用涂有二氧化 (Ti/IrO2),二氧化 (Ti/RuO2) 和 (Ti/Pt) 的电极进行氧化.
- 进行了实验以确定最佳参数,包括应用电流 (150mA),初始pH (5) 和氧化时间 (120分钟).
- 对于每个电极类型的降解率 (kFLX) 和特定能耗 (SEC) 在初始FLX度为25 mg/L时进行了评估.
主要成果:
- Ti/IrO2和Ti/RuO2电极实现了高的FLX去除效率 (分别为91.5%和93.9%),显著优于Ti/Pt电极.
- 最佳降解条件被确定为150mA电流,pH值为5,氧化时间为120分钟.
- 降解率为Ti/IrO2的kFLX = 0.0163分钟-1和Ti/RuO2的kFLX = 0.0168分钟-1,在较高的FLX度下观察到较低的降解率. 对于Ti/IrO2,SEC值为39.6千瓦时/米3,对于Ti/RuO2.2,则为48.6千瓦时/米3.
结论:
- 电化学氧化是一种高效的技术,用于从污染水源中去除素.
- 与传统的Ti/Pt电极相比,混合金属氧化物电极,特别是Ti/IrO2和Ti/RuO2,在FLX降解方面提供了更高的性能和效率.
- 优化的电化学处理为减轻水生环境中制药污染提供了可行的解决方案.
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