Chen, Season S.Season S.ChenYang, Zhen JieZhen JieYangChang, C.-H.C.-H.ChangKoh, Hoong UeiHoong UeiKohAl-Saeedi, Sameerah I.Sameerah I.Al-SaeediKUO-LUN TUNGKEVIN CHIA-WEN WU2023-07-042023-07-042022-01-01https://scholars.lib.ntu.edu.tw/handle/123456789/633328Metal-organic framework (MOF) membranes are potentially useful in gas separation applications. Conventional methods of MOF membrane preparation require multiple steps and high-pressure conditions. In this study, a reliable one-step interfacial synthesis method under atmospheric pressure has been developed to prepare zeolitic imidazolate framework-8 (ZIF-8) membranes supported on porous α-Al2O3 disks. To obtain optimal ZIF-8 membranes, three reaction parameters were investigated, namely, reaction temperature, reaction time, and concentration of the organic linker (i.e., 2-methylimidazole). The growth of ZIF-8 membranes under various parameters was evaluated by field-emission scanning electron microscopy, and the optimal synthesis conditions were determined (i.e., 80 °C for 12 h in 50 mM of 2-methylimidazole). The as-synthesized ZIF-8 membranes were then applied to CO2/N2 gas separation, which exhibited a maximum separation factor of 5.49 and CO2 gas permeance of 0.47 × 10−7 mol·m−2·s−1·Pa−1Defect-free | Gas separation | Interfacial synthesis | Metal-organic frameworks | Zif membranesjournal article10.3762/BJNANO.13.262-s2.0-85130417443https://api.elsevier.com/content/abstract/scopus_id/85130417443