有效的复合物化乙烯去除使用酸增强Fe/Ni纳米颗粒激活硫酸
Mingda Che1, Hongjian Su2, Huimin Si1
1State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Membrane Science and Desalination Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China.
Environmental science and pollution research international
|January 8, 2024
概括
本研究介绍了一种有效的方法,用于从废水中去除化乙烯,使用加力酸增强的Fe/Ni纳米粒子和硫酸. 该系统在广泛的pH范围内有效降解三乙烯和乙烯等污染物.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 纳米材料的应用
背景情况:
- 乙烯是废水中的持久污染物,对环境和健康构成重大风险.
- 这些化合物的有效去除对于废水处理过程至关重要.
- 现有的方法经常面临效率和广泛应用方面的挑战.
研究的目的:
- 开发一种有效的系统,从废水中去除复合化乙烯.
- 调查酸在Fe/Ni纳米颗粒激活酸盐中的作用.
- 为了评估酸-Fe/Ni-persulfate系统在各种条件下的性能.
主要方法:
- 使用的Fe/Ni纳米颗粒被酸激活以增强硫酸氧化.
- 系统评估了酸-Fe/Ni和硫酸度,pH,温度和水矩阵组件的影响.
- 采用电子磁共振 (EPR) 和激光火来识别反应物种.
- 使用UV-Vis光谱和ICP-OES分析Fe-酸化和铁离子行为.
主要成果:
- 在pH值3.0-12.0范围内实现了近乎完全的三乙烯 (100%) 和高乙烯 (97.3%-98.6%) 的去除.
- 确定了硫酸盐 (SO4•-) 和基 (•OH) 激素作为分别在酸性和性条件下降解的关键物种.
- 证明Fe-酸化有效调节铁离子度并增强纳米粒子反应性.
结论:
- 酸-Fe/Ni-persulfate系统提供了一种高效和强大的方法来处理被复合化乙烯污染的废水.
- 化策略提高了Fe/Ni纳米颗粒的催化活性和稳定性.
- 这种方法为先进的废水处理提供了一个有希望和可持续的解决方案.
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