This work is aimed to investigate the permeation characteristic of CA/γ -CD-metal organic framework (MOF) based mixed matrix membranes (MMM) for CO 2 /CH 4 separation. The defect-free CA/γ -CD-MOF MMMs with dense, isotropic morphology were fabricated using solution casting method. The fabricated membranes were characterized through Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), ultimate tensile testing, and contact angle measurements. The characterization techniques revealed the uniform dispersion of filler in cellulose acetate matrix and absence of the agglomerates or cracks in the synthesized membrane samples. Moreover, the CO 2 /CH 4 separation performance of fabricated membrane was evaluated using single and mixed gas permeation tests. A general trend of decreasing permeability and selectivity, that is, 36.79-35 of both CO 2 and CH 4 was observed by increasing the filler weight percentage (0.2-1.0) and pressure (1-5 bar). However, the highest CO 2 /CH 4 selectivity of 38.49 was achieved by CA/γ -CD-MOF 0.4wt% MMM.

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