Design of Functional Metal-Organic Framework Membranes on Polymers
As an important energy-efficient and environmentally friend separation process, membrane separation has been widely applied in various fields, such as gas separation, water treatment, solvent purification, special separation processes and etc.Metal-organic frameworks (MOFs) are kinds of crystalline materials, which possess a series of extraordinary features, such as uniform pore sizes, large surface areas, large diversity in structures and special adsorption abilities, etc.MOF membranes can offer unique opportunities to overcome the limitations of Robeson”s ”upper-bound” in membrane-based separation, and therefore have received considerable attention which hold great potential to break through most of existing bottlenecks.Various substrates have been employed to support MOF membranes for separation applications.Among them, inorganic substrates, such as metal net, aluminium oxide and titanium dioxide, are mostly studied.Since polymeric membranes and biomaterials have the advantages of low cost,high processing ability and large membrane areas compared with inorganic substrates, the polymeric membranes as substrates will be of good benefit to industrial applications.So far, there are only a few reports concerning the successful MOFs growing on polymer or biomaterial surface.In our research, we have focused on developing serials of MOF/polymer/biomaterial composite membranes with comparative separation performance.To overcome the issues of coverage, adhesion, compression, chemical resistance and swelling in fabrication of MOF composite membrane, the substrates were modified or biomaterials were applied directly to fabricate continuous MOF composite membranes.Furthermore, the mixed matrix membrane and continuous MOF layer were also integrated as well as the continuous MOF layers were in situ transformed to further improve the separation performance of the prepared membranes.
Metal-organic frameworks Polymer Composite membranes Chemical modification Molecular sieving
Guoliang Zhang Wanbin Li Pengcheng Su Zheng Fan Qin Meng Chong Shen
Institute of Oceanic and Environmental Chemical Engineering, College of Ocean, Zhejiang University o College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
国内会议
江西上饶
英文
224-228
2016-08-01（万方平台首次上网日期，不代表论文的发表时间）