铁基磁性金属有机框架材料的合成及其在水处理领域应用

Synthesis of iron-based magnetic metal-organic frame materials and their applications in the field of water treatment

总结了近年来铁基磁性金属有机框架材料(MMOFs)的主要合成方法如混合合成法、原位生长法、层层自组装法、缓冲封装法以及其他的合成方法;同时对铁基MMOFs材料在污水修复中催化如多相催化和光催化和吸附领域如对重金属的吸附处理、对有机物的吸附处理和对景观水体的磷酸盐吸附处理的应用进展进行了总结;对多种代表性的MMOFs材料的应用特性如比表面积、孔径、磁饱和强度、处理的污染物、吸附量和重复使用次数等进行了比较。对未来铁基MMOFs材料的研究进行了展望,认为在MMOFs的稳定性和选择性提高、MMOFs的应用规模扩大以及价格低廉、更简便的制备方法是未来MMOFs材料的研究方向。

Ferrous magnetic metal organic framework materials(MMOFs)have been widely used in wastewater treatment due to their high selectivity,easy separation and multiple reuse.The main synthesis methods of iron based MMOFs in recent years,such as mixed synthesis,in situ growth,layer by layer self-assembly,buffer encapsulation and other synthesis methods,are summarized;at the same time,the application progress of iron based MMOFs materials in the fields of catalysis,such as heterogeneous catalysis,photocatalysis and adsorption,such as the adsorption treatment of heavy metals,the adsorption treatment of organic substances and the phosphate adsorption treatment of landscape water in sewage remediation is summarized.The application characteristics of several representative MMOFs materials,such as specific surface area,pore diameter,magnetic saturation strength,treated pollutants,adsorption capacity and reuse times,were compared.The future research of iron based MMOFs materials is prospected.It is believed that the research direction of MMOFs materials in the future is to improve the stability and selectivity of MMOFs,expand the application scale of MMOFs,and develop low-cost and simpler preparation methods.