金属铁在硫酸根自由基反应中的催化应用

Catalytic Application of Ferrous Metal in Reaction of Sulfate Radical

基于SO_(4)-·的高级氧化技术处理有机污染物在国内外受到广泛关注,铁作为廉价、环境友好、自然富足的活化剂,有望成为应用于高级氧化技术的新代绿色催化剂。本文综述了近几年国内外关于各种铁材料在活化过硫酸盐氧化技术中的研究进展,包括亚铁离子活化、纳米铁活化、铁矿活化、金属铁改性活化、金属铁负载活化以及其他技术耦合活化过硫酸盐降解有机污染物的研究现状,最后提出了该技术目前面临的问题及未来发展方向,期望为促进炭质材料活化过硫酸盐高级氧化技术的进一步推广和应用提供参考。

The advanced oxidation technology based on SO_(4)-·has been widely concerned at home and abroad. As a cheap, environment-friendly and naturally abundant activator, iron is expected to become a new generation of green catalyst for advanced oxidation technology. in this paper, the research progress of various iron materials in activated persulfate oxidation in recent years at home and abroad was reviewed, including ferrous ion activation, nano-iron activation, iron ore activation, metal iron modification activation, metal iron loading activation and other technology coupling activation of persulfate to degrade organic pollutants. Finally, the current problems and future development of this technology were put forward, which could provide some reference for further promotion and application of activated persulfate advanced oxidation technology with carbon materials.