摘要
由于现代工业的快速发展,在水环境中广泛检测到具有高生态毒性的内分泌干扰物(EDCs).基于硫酸根自由基的高级氧化工艺(SO4-·-AOPs)因其高氧化潜能以及与其他AOPs相比在EDCs修复中的有效性而被广泛认可.本文首先综述了不同过硫酸盐(PS)活化方法(如过渡金属活化、碳材料活化、热活化、紫外活化、电化学活化和超声活化)的活化机理及其在去除EDCs中的应用,指出各活化方法的优点和局限性,并总结一些提升其活化性能的有效策略.其次,介绍了以亚硫酸盐作为产生SO4-·的新型前体的应用,并强调EDCs降解过程中中间产物的毒性变化.最后,对研究进展进行总结和展望.未来可考虑扩大机器学习在预测SO4-·对不同EDCs的反应性、氧化机制、生成的转化产物及其毒性等方面的研究,从而进一步提高SO4-·-AOPs的实际应用潜力.
Abstract
Due to the rapid development of modern industry,endocrine disrupting chemicals(EDCs)with high ecotoxicity are widely detected in the aquatic environment.In recent years,sulfate radicals-based advanced oxidation processes(SO4-·-AOPs)have been widely recognized for their high oxidative potential and effectiveness in the remediation of EDCs compared with other AOPs.In this paper,firstly,the activation mechanisms of different persulfate(PS)activation methods(e.g.,transition metal activation,carbon material activation,thermal activation,UV activation,electrochemical activation,and ultrasonic activation)and their applications in the removal of EDCs are reviewed.The advantages and limitations of each activation method are pointed out,and some effective strategies to enhance their activation performance are summarized.Secondly,the application of sulfite as a novel precursor for the generation of SO4·is presented,and the changes in toxicity of intermediates during the degradation of EDCs are emphasized.Finally,the research progress is summarized and prospected.In the future,it can be considered to expand the research of machine learning in predicting the reactivity,oxidation mechanism,generated transformation products and their toxicity of SO4·to different EDCs,so as to further enhance the practical application potential of SO4-·-AOPs.
维普
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