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        Synthesis and gas transport performance of MIL-101/Matrimid mixed matrix membranes

        Masoomeh Naseri,Toraj Mohammadi,Seyed Foad Mousavi,Omid Bakhtiari 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.29 No.-

        Mixed matrix membranes (MMMs) are composites of highly selective fillers within a polymeric matrix,resulting in higher selectivity and/or flux in gas separation applications. In this work, micron sized MIL-101 crystals with potential of gas separation by adsorption were synthesized and used as filler for thepreparation of MMMs for gas separation. Gas adsorption measurements were performed for CO2, CH4and N2 using MIL-101 crystals and the results showed significant adsorption of CO2 compared with thetwo other gases at different pressures. SEM images and XRD analysis were used to characterize the fillerparticles and the synthesized membranes. MIL-101/Matrimid MMMs were synthesized with up to30 wt.% loading of filler particles. SEM images showed good dispersion of the particles in the polymericmatrix and also good adhesion between the filler particles and the polymer. Permeability measurementswere performed for pure gases of CO2, CH4 and N2 and the results showed improved CO2/CH4 and CO2/N2ideal selectivities for the MMMs compared with those for the neat Matrimid membrane. For the MMMswith 10 wt.% loading, permeability of CO2 was found as 6.95 Barrer and ideal selectivities for CO2/CH4and CO2/N2 were as 55.77 and 52.92, respectively.

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