全氟化合物(PFCs)是一类人工合成的新型持久性污染物,在工业生产和日常生活中应用广泛,已在多种环境介质中被检出。由于其具有高热稳定性、化学稳定性、生物富集性和生物毒性,对生态环境和人类健康存在巨大威胁,如何有效去除水体中PFCs成为水处理领域的挑战和前沿课题之一。金属及金属氧化物由于具有吸附性、氧化还原性和催化性等特性,在PFCs的去除处理中有良好的应用前景,尤其是金属及金属氧化物与其他吸附剂材料耦合形成复合功能性材料,实现了对PFCs的同步吸附与降解。通过总结近几年来金属及金属氧化物功能材料在PFCs去除中的应用案例,对比金属和金属氧化物与不同吸附剂基质间的相互作用机制与效果,分析了金属及金属氧化物功能材料应用于PFCs去除的优势与存在问题并对未来研究作出展望。
Perfluorinated compounds (PFCs) are new class of synthetic persistent pollutants,which have been widely used in industrial production and daily life,and have been detected in a variety of environmental media.Due to their high thermal stability,chemical stability,biological enrichment and biological toxicity,PFCs pose great threat to the ecological environment and human health.How to effectively remove PFCs from water has become one of the challenges and cutting-edge topics in the field of water treatment.Metal and metal oxides have good application prospects in the removal of PFCs due to their properties of adsorption,redox and catalysis.In particular,metal and metal oxides can be coupled with other adsorbent materials to form composite functional materials,realizing synchronous adsorption and degradation of PFCs.By summarizing the application cases of metal and metal oxide functional materials used in PFCs removal in recent years,the interaction mechanism and effect between metal and metal oxide and different adsorbent substrates were compared.The advantages and problems of metal and metal oxide functional materials applied in PFCs removal were analyzed,and prospected the future research.
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基金资助
国家自然科学基金(51809179);江苏省水利科技项目(2019004)
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