ZIF-8及其衍生材料在水处理领域的应用

Application of ZIF-8 and its derived materials in the field of water treatment

沸石咪唑酯骨架材料-8(ZIF-8)是以Zn(Ⅱ)为配位中心,通过与2-甲基咪唑配位自组装形成的多孔结晶材料,具有大的比表面积、优异的孔结构和丰富的表面官能团等优点,近年来在治理水体污染方面展现出巨大的应用潜力。首先,综述了近几年ZIF-8及其衍生材料在水处理领域的应用研究进展,重点介绍了ZIF-8及其衍生材料在重金属吸附、治理核污染和捕捉放射性碘、抗生素吸附、油水分离及染料降解和水体环境监测方面的应用;接着,介绍了ZIF-8及其衍生材料用于水处理的主要机理;然后,分析了水稳定性和环境因子对ZIF-8及其衍生材料吸附水中污染物的影响;最后,对ZIF-8及其衍生材料的研究及应用进行了展望。

Zeolitic imidazolate framework-8(ZIF-8)is a porous crystalline material formed by coordination and self-assembly of Zn(Ⅱ)and 2-methylimidazole.In recent years,ZIF-8 and its derived materials have shown great potential in the treatment of water pollution due to the special features of huge specific surface area,excellent pore structure and abundant surface functional groups.Frist of all the research progress of ZIF-8 and its derivatives in the field of water treatment,especially in heavy metal adsorption,nuclear pollution treatment,radioactive iodine capture,antibiotic adsorption,oil-water separation,dye degradation and water environment monitoring,in recent years was introduced and reviewed.Subsequently,the main working mechanism and influence factors,such as water stability,environmental factors,were analyzed.At last,the development and application of ZIF-8 and its derived materials were prospected.