铁基双金属催化剂耦合过一硫酸盐去除污染物的研究进展  

Research progress on the coupling of iron based bimetallic catalysts with peroxymonosulfate for pollutants removal

作　　者：官海汕 李帅 许伟城 江学顶 GUAN Haishan;LI Shuai;XU Weicheng;JIANG Xueding(School of Environmental and Chemical Engineering,Foshan University,Foshan,528000,China)

机构地区：[1]佛山科学技术学院环境与化学工程学院,佛山528000

出　　处：《环境化学》2024年第11期3909-3920,共12页Environmental Chemistry

基　　金：广东大学生科技创新培育专项资金(pdjh2023b0555);2022佛山科学技术学院学术基金(xsjj202210zra01)资助.

摘　　要：水中难降解有机物对人体健康和生态环境存在潜在威胁,开发稳定、高效和低成本的催化体系对去除水中难降解有机物具有重要意义.基于硫酸根自由基的高级氧化技术(SR-AOPs)因其氧化能力和适应性受到广泛关注.铁基双金属催化剂由于能快速活化过一硫酸盐(PMS)而被认为是有效的催化剂,它弥补了单一铁元素催化剂活化效率低和容易产生二次污染等缺陷.本文综述了铁基双金属催化剂的基本特征,介绍了铁基双金属催化剂的合成方法,并说明其改性方法,接着探讨铁基双金属活化PMS的机理.最后,指出铁基双金属催化剂活化过一硫酸盐降解有机污染物面临的挑战和未来可能的发展方向.Organic compounds in water pose a potential threat to human health and the ecological environment.Developing a stable,efficient,and low-cost catalytic systems is of great significance for the removal of refractory organic compounds in water.Sulfate radical-based advanced oxidation processes(SR-AOPs)have received intensive attention due to their oxidation capacity and adaptability.Iron based bimetallic catalysts have been regarded as effective catalysts due to their quick activation of peroxymonosulfate(PMS),which makes up for the defects of low activation efficiency and formation of secondary pollution of single iron catalysts.This paper provides a detailed overview of the fundamental characteristics of iron-based bimetallic catalysts,and introduces the latest research progress in the synthesis method and modification method of iron-based bimetallic catalysts.Moreover,the mechanisms of iron based bimetallic activation of PMS are explored in detail.Finally,the challenges and potential future development directions of PMS activation with iron based bimetallic catalysts for the degradation of organic pollutants are also discussed.

关 键 词：铁基双金属 过一硫酸盐 有机污染物 机理 

分 类 号：X-1[环境科学与工程] O6[理学—化学]