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在水溶液中对CoFe2O4催化剂进行异质的电-芬顿去除聚烯胺

Shanshan Xu¹, Yi Yang¹, Fanxiu Li²

¹College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, Hubei, China.

Water science and technology : a journal of the International Association on Water Pollution Research

|August 16, 2024

概括

这项研究引入了铁酸盐 (CoFe2O4) 磁性纳米粒子,作为一种有效的催化剂,用于使用异质的电-芬顿 (EF) 工艺从废水中去除聚烯胺 (PAM). 新型催化剂实现了超过92%的PAM去除,证明了水污染管理的稳定性和可重复使用性.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
催化剂是一种催化剂.

背景情况:

聚烯胺 (PAM) 由于其持久性和高粘度,在废水处理中带来了重大挑战.
有效地去除PAM对于环境水资源管理至关重要.

研究的目的:

合成和利用磁性铁酸盐 (CoFe2O4) 纳米颗粒作为电-芬顿 (EF) 系统中的异质催化剂,用于PAM去除.
调查 CoFe2O4 催化剂在降解 PAM 的效率,活性物种和稳定性.

主要方法:

使用溶剂热合成来制备CoFe2O4纳米粒子.
用 CoFe2O4 作为催化剂进行 PAM 降解,采用了异质的 Electro-Fenton (EF) 系统.
使用X射线衍射 (XRD),X射线光电子光谱 (XPS) 和富里埃变换红外光谱 (FTIR) 来进行催化剂特征和稳定性分析.

主要成果:

在120分钟后,CoFe2O4催化剂在pH3下实现了92.01%的PAM去除效率.
基基 (·OH) 被确定为负责PAM降解的主要活性物种.
催化剂在五个周期内表现出极好的稳定性和可重复使用性,结构和组成的变化最小.

结论:

CoFe2O4纳米粒子是异质EF系统中PAM去除的高效和稳定的催化剂.
开发的催化工艺为处理被PAM污染的废水提供了一个有希望的解决方案.
了解催化机制为设计复原污染物的先进氧化过程提供了洞察力.

关键词:

在 CoFeFe CoFeFe 中.先进的氧化氧化方式.不同质的电力-芬顿.聚烯胺是一种多烯胺.激进的机制激进的机制控制水污染控制水污染

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