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从废水中提升去除2,4-二二,使用三级Fe-Mn-Ce/γ-Al₂O₃作为臭氧化过程中的催化剂

Ainebyoona Peterson¹, Xinpeng Shu¹, Bensheng Su¹

¹College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China.

Water environment research : a research publication of the Water Environment Federation

|October 24, 2025

概括

一种新的Fe-Mn-Ce/γ-Al2O3催化剂有效地通过催化臭氧化在废水中降解2,4-二二 (2,4-DCP). 这种先进的氧化过程显示了污染物去除的高效率和稳定性.

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:

2,4-二二醇 (2,4-DCP) 是一种持久性污染物,对常规水处理具有抗性.
使用基基 (•OH) 的异质催化臭氧化是一种有前途的降解方法.

研究的目的:

为了研究三元Fe-Mn-Ce/γ-Al2O3催化剂 (FMC) 对2,4-DCP降解的有效性.
阐明催化机制,并评估催化剂的稳定性和适用于真实的废水.

主要方法:

通过湿初始物质浸来制备FMC催化剂.
使用O3和FMC催化剂降解2,4-DCP.
使用SEM,BET和XPS进行表征.
清理实验以确定反应性氧物种.

主要成果:

在60分钟内完成2,4-DCP降解和88%的COD去除,使用FMC和O3.
三元催化剂的协同效应改善了COD去除,比单一催化剂提高48%,比二元催化剂提高30%.
发现了大量的表面积 (184.05 m2/g) 和活性物种 (Fe2+,Ce3+,Mn3+,表面氧).
•OH激素被证实是2,4-DCP降解的主要物种.
催化剂在7天内表现出极好的稳定性,并在真实的废水中表现出有效性.

结论:

FMC催化剂在异质催化臭氧化中表现出卓越的性能,用于去除2,4-DCP.
催化剂的结构和活性点有助于有效降解污染物.
FMC催化剂显示出在工业废水处理中实际应用的巨大潜力.

关键词:

这是2.4-二二醇.催化臭氧化催化臭氧化有协同效应的效应.三元化Fe-Mn-Ce/γ-Al2O3 的情况.

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