炭质材料在活化过硫酸盐高级氧化技术中的应用进展

Research advances on applying carbon materials to activate persulfate in advanced oxidation technology

在应用过硫酸盐高级氧化技术降解有机污染物的过程中,开发经济、高效、安全的新型活化技术至关重要并成为目前的研究热点。近年来,炭质材料凭借其自身独特的优势及发展前景迅速受到广泛的关注,有望成为应用于高级氧化技术的新一代绿色催化剂。本文综述了近几年来国内外关于各种炭质材料在活化过硫酸盐氧化技术中的研究应用进展,包括活性炭活化、不同类型的生物炭活化、表面化学改性炭材料活化、杂原子改性炭材料活化、炭材料负载金属及金属氧化物活化以及炭材料与其他技术耦合活化过硫酸盐降解有机污染物的研究现状,并探讨了该技术在应用过程中的运行成本问题,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。

In the degradation process of organic pollutants using activated persulfate oxidation technology,it is very important to develop new activation technology which is economical,efficient and safe,and it has become a research hotspot.In recent years,carbon materials,with their unique advantages and promising application prospects,have been widely concerned,and are expected to become a new generation of green catalysts for advanced oxidation technology.In this paper,the latest research progress on the application of various carbon-based materials including activated carbon,different types of biochar,surface modified carbon materials,heteroatom modified carbon materials,and metals and metal oxides loaded carbon materials for persulfate activation and carbon materials coupling with other technologies to activate persulfate to degrade organic pollutants are deeply reviewed.In addition,the operating cost of activated persulfate oxidation technology with carbon materials and other different methods is discussed.Finally,the current challenges and future development direction of carbon materials in persulfate based advanced oxidation technology are put forward.This review may provide a reference for the further popularization and application of carbon materials on catalyzing persulfate advanced oxidation reaction to degrade organic pollutants.