Gas transport characteristics of mixed matrix membrane containing MIL-100 (Fe) metal-organic frameworks and PEBAX precursors

• Published in: The Korean journal of chemical engineering Vol. 40; no. 9; pp. 2138 - 2148
• Main Authors: Pirouzfar, Vahid, Roustaie, Narges, Su, Chia-Hung
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.09.2023; Springer Nature B.V; 한국화학공학회
• Subjects: Biotechnology; Carbon dioxide; Catalysis; Chemistry; Chemistry and Materials Science; Gas transport; Industrial Chemistry/Chemical Engineering; Iron; Materials Science; Membranes; Metal-organic frameworks; Methane; Transport Phenomena; Transport properties; 화학공학; MIL-100; Selectivity; PEBAX; MOF; Mixed Matrix Membrane
• ISSN: 0256-1115; 1975-7220
• DOI: 10.1007/s11814-023-1501-4

This research scrutinized the effect of adding MIL-100 (Fe) metal-organic frameworks (MOFs) on the PEBAX membranes in two grades, 1657 and 2533. Initially, the intended membranes were synthesized by the solution-casting method. Then, XRD and SEM were applied to examine the influence of adding MIL-100 (Fe) to the structure of both membranes. Consequently, the separation function of the pair gases of CO 2 /CH 4 , CO 2 /N 2 , and CO 2 /O 2 and their permeability were considered at the pressure of 3.5 bar and temperature of 25 °C. Eventually, their function was compared by Robeson diagrams of 1991 and 2008. According to Robeson diagrams, the comparison outcomes indicated that the PEBAX1657/MIL-100 (Fe) and PEBAX2533/MIL-100 (Fe) membranes containing 5% of MOF represent better performance in separating CO 2 /CH 4 . However, their function for separating the considered gases requires more modifications.