화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.38, No.1, 121-128, January, 2021
DOI10.1007/s11814-020-0636-9  Export Citation
Effect of Cu-MOFs incorporation on gas separation of Pebax thin film nanocomposite (TFN) membrane
Mahdi Fakoori, Amin Azdarpour†, Reza Abedini1, and Bizhan Honarvar
  • Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
  • 1Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran
E-mail:
MOF-based membranes, which have appropriate MOF dispersion and suitable interaction, have shown high CO2 permeability and significant CO2/CH4 and CO2/N2 selectivity. In this study, a layer of Pebax was coated on polysulfone (PSF), which this layer incorporated by various content of Cu-MOFs to improve the performance (permeability and CO2/CH4 and CO2/N2 selectivity) of all membranes. Characterization techniques such as SEM, TGA, BET, and gas adsorption verified that Cu-BTC was successfully dispersed into the Pebax matrix. Pure CO2 and CH4 gases permeation experiments were performed to investigate the impact of Cu-MOFs on the gas permeability of prepared MOF-based membranes. The “Pebax” embedded by 15 wt% CuBTC and 15 wt% of NH2-CuBTC over PSF support exhibited higher gas separation performance compared to the pristine one. They demonstrated a CO2 permeability of 228.6 and 258.3 Barrer, respectively, while the blank membrane had a CO2 permeability of 110.6 Barrer. Embedding the NH2-Cu-BTC intensified the interaction between incorporated MOF particles and the polymer phase that led to increase the CO2/CH4 and CO2/N2 selectivity. In addition, the performance of prepared membranes was evaluated at various feed pressures with the range of 2-10 bar. The CO2/CH4 and CO2/N2 separation was enhanced as the feed pressure surged.
Keywords:Cu-MOFs;MOF-based Membrane;Gas Separation Performance
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