Revealing the enhanced role of hydroxylamine and bimetals in the CuFe2O4/PMS/HA system towards effective degradation of organic contaminants

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Journal of Hazardous Materials Pub Date : 2025-01-21 DOI:10.1016/j.jhazmat.2025.137312

Yulong Li, Jiayi Ren, Jing Ding, Yongxin Wang, Hui Yan, Fengyang Liu, Jian Wei, Xuedong Zhai, Abdulaziz Al-Anazi, Polycarpos Falaras

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引用次数: 0

Abstract

In this study, a hydroxylamine (HA)-enhanced magnetic spinel catalyst CuFe₂O₄-activated peroxymonosulfate (PMS) system (CuFe₂O₄/PMS/HA) was constructed to degrade Sulfamethoxazole (SMX). Results from experiments and theoretical calculations indicated that active species generation mechanism involved the direct activation of PMS by HA, the redox cycles acceleration on the surface of CuFe₂O₄ by HA, and the synergistic action of the low valence Fe and Cu species in CuFe₂O₄ for PMS activation. The efficacy of other organic pollutants removal was further validated in bio-treated landfill leachate through removal performance and toxicity assessment. This study provided an understanding of the role of HA and its interactions with Cu-Fe bimetals to activate PMS, advancing our understanding and inspiring the application of similar spinel/reductants/PMS systems.

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揭示羟胺和双金属在 CuFe2O4/PMS/HA 系统中对有效降解有机污染物的增强作用

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来源期刊

Journal of Hazardous Materials 工程技术-工程：环境

CiteScore

25.40

自引率

5.90%

发文量

3059

审稿时长

58 days

期刊介绍： The Journal of Hazardous Materials serves as a global platform for promoting cutting-edge research in the field of Environmental Science and Engineering. Our publication features a wide range of articles, including full-length research papers, review articles, and perspectives, with the aim of enhancing our understanding of the dangers and risks associated with various materials concerning public health and the environment. It is important to note that the term "environmental contaminants" refers specifically to substances that pose hazardous effects through contamination, while excluding those that do not have such impacts on the environment or human health. Moreover, we emphasize the distinction between wastes and hazardous materials in order to provide further clarity on the scope of the journal. We have a keen interest in exploring specific compounds and microbial agents that have adverse effects on the environment.