(53w) Effect of Graphene Oxide and ZIF 301 into a MMM for CO2 Separation Enhancement

Graphene oxide (GO) nanosheets and zeolitic imidazole frameworks (ZIF-301) were synergistically integrated to polysulfone (PSF) to prepare mixed-matrix membranes (MMMs) for CO₂ separation enhancement purpose. This study is the first to integrate a water stable ZIF-301 into a MMM to separate CO₂. The conducted experiments showed improved CO₂ permeability and CO₂/N₂ ideal selectivity of MMMs due to synergistic effect of GO with ZIFs. The composite membrane containing 1 wt % GO and 30 wt % ZIF-301 nanofillers showed an optimum separation performance by providing a CO₂ permeability of 25 Barrers with CO₂/N₂ selectivity of 63.