https://scholars.lib.ntu.edu.tw/handle/123456789/633328
標題: | Interfacial nanoarchitectonics for ZIF-8 membranes with enhanced gas separation | 作者: | Chen, Season S. Yang, Zhen Jie Chang, C.-H. Koh, Hoong Uei Al-Saeedi, Sameerah I. KUO-LUN TUNG KEVIN CHIA-WEN WU |
關鍵字: | Defect-free | Gas separation | Interfacial synthesis | Metal-organic frameworks | Zif membranes | 公開日期: | 1-一月-2022 | 卷: | 13 | 來源出版物: | Beilstein Journal of Nanotechnology | 摘要: | Metal-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−1 |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/633328 | DOI: | 10.3762/BJNANO.13.26 |
顯示於: | 化學工程學系 |
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