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微塑料对通过MnOOH催化周期性激活4-醇降解的影响

Fatemeh Ghadiri¹, Ali Fatehizadeh², Ensiyeh Taheri³

¹Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Student Research Committee, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.

Journal of environmental management

|August 19, 2025

概括

这项研究开发了一种新的PI/MnOOH工艺,用于降解有毒的4-烯 (4-CP). 微塑料对降解效率产生了负面影响,突出了先进氧化过程中的环境挑战.

科学领域:

环境化学环境化学
材料科学材料科学材料科学

背景情况:

4-二醇 (4-CP) 是一种有毒的工业污染物,耐常规水处理.
微塑料 (MPs) 是新兴的环境污染物,在水资源整治中具有未知的相互作用.

研究的目的:

用水热合成的MnOOH激活的周期酸盐 (PI) 来研究4-CP的降解.
评估微塑料共存对PI/MnOOH高级氧化过程 (AOP) 的影响.

主要方法:

热合成MnOOH用于周期激活.
使用PI/MnOOH进行4-CP降解的高级氧化工艺 (AOP).
使用火实验评估反应性物种 (IO3•, 1O2, O2•−, •OH).
对MP干扰 (PET,PS,PVC) 对降解效率的评估.

主要成果:

PI/MnOOH实现了92.53%的4-CP降解,显著超过单独PI (23.85%) 和单独MnOOH (11.82%).
最佳降解 (98.75%) 发生在pH 3下,速度常数为0.062分钟-1.1.
微塑料降低了4-CP降解效率,而PVC造成了最显著的下降 (68.95%).

结论:

合成的MnOOH有效地激活周期酸,以有效降解4-CP.
微塑料干扰PI/MnOOH AOP,主要是通过静电相互作用和孔隙阻塞.
结果提供了对AOP中的MP干扰及其对水处理的环境影响的见解.

关键词:

在 AOP AOP 中.微塑料是一种微塑料.MnOOH MnOOH 在线观看周期日期周期日期类化合物是一种类化合物.

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