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Mohamad Rezi Abdul Hamid,Thomas Choong Shean Yaw,Mohd Zahirasri Mohd Tohir,Wan Azlina Wan Abdul Karim Ghani,Putu Doddy Sutrisna,Hae-Kwon Jeong 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.98 No.-
Advanced porous materials with uniform molecular scale apertures are highly desirable for energyrelated separations. Among them, zeolitic imidazolate frameworks (ZIFs) have received significantinterest as separation membranes owing to their narrow apertures that can target small gases. ZIFsexhibit excellent gas transport properties, such as unprecedentedly high C3H6 permeability andremarkable C3H6/C3H8 selectivity, inaccessible by other porous inorganic materials and polymers. Deposition of ultrathin ZIFs on porous substrates to form gas-selective barriers has been a major focus inthis area. There has been a significant development in the synthesis of ultrathin ZIF membranes for gasseparations. In this review, we present a summary of current state-of-the-art in ZIF membrane processingand highlight unique microstructural features of the prepared membranes. Following this, we discusslevel of separation performances of these advanced membranes focusing on three emerging/unsolvedapplications. Finally, we provide our perspectives on future research directions in the area.