Investigation of the Selectivity and Permeability of PES Mixed-Matrix Membranes Containing Nanoporous MIL-47 for O2/N2 Separation

Gas separation Mixed-Matrix Membranes (MMMs) are a new class of membranes have attracted muchattention due to their superior performance compared to polymeric and inorganic membranes. The hydrothermally stablenanoporous metal-organic framework (MIL-47) were synthesized and then added to a glassy polymer (polyethersulfone,PES) as fillers in order to fabricate asymmetric gas separation MMMs. Scanning Electron Microscopy (SEM), FourierTransform Infrared Spectroscopy (FTIR) and X-ray Diffraction Spectroscopy (XRD) were used to investigate theproperties of MIL-47. Single gas permeation tests were done on MMMs containing various loadings of fillers at pressurerange of 2-8 bars. At 1 %Wt MIL-47 loading and 4 bars, the membrane showed enhanced selectivity and permeabilitycompared to the pure polymer.

کلیدواژه ها:

Mixed-Matrix Membranes ، Gas Separation ، Metal-Organic Frameworks ، MIL-47