过硫酸盐高级氧化体系(SR-AOPs)可有效去除微污染物(MPs),但对催化剂的要求较高。碳质材料(CMs)具有独特理化性质,可作为SR-AOPs体系的新型催化剂。综述了生物炭(BC)、石墨烯基材料(GBMs)、碳纳米管(CNTs)的制备方法及其协效SR-AOPs体系催化氧化的反应机理及其去除MPs的研究。杂原子掺杂、含氧官能团的引入是提高GBMs及CNTs催化性能的主要手段,在纳米尺度上精确控制杂化材料的结构可实现性能优化。在CMs/SR-AOP中引入膜技术、电化学技术和光催化技术等将有望推动净水技术的发展。
Advanced oxidation systems with persulfates (SR-AOPs) are effective in the removal of micropollutants (MPs),but they have high requirements for catalysts.Carbonaceous materials (CMs) have unique physicochemical properties and can be used as novel catalysts for SR-AOPs systems.This paper reviewed the preparation methods of biochar (BC),graphene-based materials (GBMs) and carbon nanotubes (CNTs),as well as the reaction mechanisms for the catalytic oxidation of their synergistic SR-AOPs systems and the study on the removal of MPs.Heteroatom doping and the introduction of oxygen-containing functional groups are the main means to improve the catalytic performance of GBMs and CNTs,and precise control of the structure of the hybrid materials at the nanoscale can lead to performance optimization.The introduction of membrane technology,electrochemical technology and photocatalytic technology in CMs/SR-AOP are expected to advance the development of water purification technology.
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基金资助
苏州区域水质提升与水生态安全保障技术及综合示范项目(2017ZX07205);苏州市产业化前瞻项目(SYG201744)
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