Ultrapermeable Composite Membranes Enhanced Via Doping with Amorphous MOF Nanosheets
Min Liu, Ke Xie, Mitchell D Nothling, Lianhai Zu, Shenlong Zhao, Dalton JE Harvie, Qiang Fu, Paul A Webley, Greg G Qiao
ACS Central Science | AMER CHEMICAL SOC | Published : 2021
Thin-film composite (TFC) polymeric membranes have attracted increasing interest to meet the demands of industrial gas separation. However, the development of high-performance TFC membranes within their current configuration faces two key challenges: (i) the thickness-dependent gas permeability of polymeric materials (mainly poly(dimethylsiloxane) (PDMS)) and (ii) the geometric restriction effect due to the limited pore accessibility of the underlying porous substrate. Here we demonstrate that the incorporation of trace amounts (∼1.8 wt %) of amorphous metal-organic framework (MOF) nanosheets into the gutter layer of TFC assemblies can simultaneously address these two limitations by the crea..View full abstract
Awarded by China Scholarship Council-University of Melbourne Research Scholarship
Awarded by Australian Research Council
The authors appreciate the Bio21 Advanced Microscopy Facility for the assistance with material characterization; M.L. acknowledges support from the China Scholarship Council-University of Melbourne Research Scholarship (No. 201606260063). Q.F. acknowledges the Australian Research Council under the Future Fellowship (FT180100312).