MOFs分离膜在水系分离中的应用

Application in water system separation of MOFs separation membranes

MOFs作为一类具有三维孔结构的新型框架材料,在催化、储能和分离领域均有广泛的应用前景,而MOFs的水稳定性一直是限制其扩大应用的壁垒。随着水稳定性MOFs材料不断涌现以及人们对MOFs水稳定性机理认识的加深,众多的学者开始关注MOFs分离膜在水体系下物质分离的应用研究。综述了围绕MOFs分离膜在水系环境下的分离应用研究展开,概述了MOFs水稳定性的影响因素,MOFs分离膜的制备及其在染料废水处理、脱盐、重金属离子去除和离子选择性分离等领域的应用研究,并对MOFs分离膜未来发展趋势进行了展望。

As a new type of framework material with three-dimensional pore structure,metal-organic frameworks (MOFs) has been widely used in the fields of catalysis,energy storage and separation.However,the water stability of MOFs is always a barrier to its application expansion.With the continuous emergence of water stable MOFs materials and the deepening understanding of the water stable mechanism of MOFs,many scholars begin to pay attention to the separation application of the MOFs separation membrane in the water system.This review focused on the separation and application of MOFs separation membranes in water system environment,summarized the factors affecting the water stability of MOFs,the preparation methods of MOFs separation membranes,and the application of MOFs separation membrane in dye wastewater,desalination and removal of heavy metal ions and ion selective separation.The future development trend of MOFs separation membrane was prospected.