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在水溶液中的有机污染物的电化学氧化,使用Ti4O7粒子阳极
Andrey Kislyi1, Ilya Moroz1, Vera Guliaeva1
1Membrane Institute, Kuban State University, 149 Stavropolskaya St., 350040 Krasnodar, Russia.
Membranes
|May 26, 2023
概括
亚氧化物 (Ti4O7) 颗粒阳极有效氧化废水中的有机污染物. 这些阳极以高效率和稳定性实现99%以上的污染物去除,为水处理提供了有前途的解决方案.
科学领域:
- 环境化学环境化学
- 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:
- 亚氧化物 (Ti4O7) 阳极对有机污染物的阳极氧化非常有效.
- 具有大孔的Ti4O7制成的反应电化学膜 (REM) 显示出高效率,可与添加钻石 (BDD) 阳极相提并论.
- 之前的研究集中在REMs上,使得对污染物氧化的粒子阳极的探索较少.
研究的目的:
- 研究Ti4O7粒子阳极在水溶液中氧化有机污染物的有效性.
- 为了评估Ti4O7粒子阳极在效率和去除率方面的性能.
- 为了评估Ti4O7粒子阳极的运行稳定性.
主要方法:
- 使用Ti4O7粒子阳极 (1-3毫米颗粒大小,0.2-1毫米孔隙) 进行阳极氧化.
- 含有酸,酸,酸和氨酸 (初始COD为600 mg/L) 的处理过的水溶液.
- 在电流密度为36mA/cm2的阳极上运行了108小时.
主要成果:
- 实现了大约40%的高瞬时电流效率 (ICE).
- 证明了超过99%的污染物去除程度.
- 在108小时的连续运行后,在36mA/cm2的温度下确认了阳极稳定性.
结论:
- Ti4O7粒子阳极是有机污染物的电化学氧化的一种可行和高效的技术.
- 开发的阳极表现出卓越的性能和稳定性,适用于废水处理应用.
- 这项研究突出了Ti4O7粒子阳极作为BDD阳极的经济有效替代品的潜力.
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