GNs/MOF-based mixed matrix membranes for gas separations |
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| Affiliation: | 1. Department of Production Engineering and Printing Technology, Akhbar Elyom Academy 6th of October, Egypt;2. Department of Production Engineering, Faculty of Mechanical Engineering and Design, Kaunas University of Technology, LT-51424 Kaunas, Lithuania;3. Lithuanian Energy Institute, Laboratory of Materials Research and Testing, Breslaujos 3, LT-44403, Kaunas, Lithuania;4. Lithuanian Energy Institute, Laboratory of Heat Equipment Research and Testing, Breslaujos 3, LT 44403, Kaunas, Lithuania;1. Department of Chemical Engineering, Faculty of Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran;2. Department of Chemical Engineering, Pennsylvania State University, University Park, PA 16802, USA;3. Faculty of Chemical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran;1. Department of Production Engineering, Faculty of Mechanical Engineering and Design, Kaunas University of Technology, LT-51424 Kaunas, Lithuania;2. Lithuanian Energy Institute, Laboratory of Heat Equipment Research and Testing, Breslaujos 3, LT 44403 Kaunas, Lithuania;3. Department of Production Engineering and Printing Technology, Akhbar Elyom Academy 6th of October, Egypt;1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China;2. School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China;1. School of Chemical Engineering, Sichuan University, Chengdu 610065, China;2. College of Architecture and Environment, Sichuan University, Chengdu 610065, China;3. School of Carbon Neutrality Future Technology, Sichuan University, Chengdu 610065, China;1. Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan;2. Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan;3. William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Avenue, Columbus, OH 43210, USA;4. School of Materials Science and Engineering, China University of Petroleum (East China), No. 66, West Changjiang Road, Huangdao District, Qingdao, Shandong 266580, China |
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| Abstract: | NU-1000 and graphene nanosheet (GNs) with different loadings have been used as fillers to prepare mixed matrix membranes (MMMs) with polyethersulfone (PES). The high performance of the MMMs has been successfully fabricated for the evaluation of gas separation at 1 bar and various temperatures (20, 40, 60 °C). The successful fabrication of the MMMs were confirmed by using SEM, FTIR, AFM, and XRD. The crystalline nature of GNs and NU-1000 in the MMMs are evidenced by XRD, which confirms the successful fabrication of the MMMs. In addition, the thermal stability of the MMMs was enhanced with the increase of the GNs. Separation performance of H2 was superior to CO2, N2 and CH4 separation on the MMMs which is a critical for producing energy. The best gas separation results in terms of both permeability and selectivity were obtained with 0.03% GNs and 10% NU-1000. PG3N membrane presented maximum H2/CO2, H2/N2 and H2/CH4 selectivity of 5, 4.2, 3.3 at 20 C, respectively. With an increase in temperature, the permeability increased, while the selectivity of all the MMMs decreased. The MMMs exhibited excellent gas separation capability, which offers unique opportunities for potential large-scale practical applications. |
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| Keywords: | NU-1000 Graphene nanosheet Mixed matrix membrane Gas separation |
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