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Different 2D materials based polyetherimide mixed matrix membranes for CO2/N2 separation
Ashwin R. Kamble,Chetan M. Patel,Z.V.P. Murthy 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.81 No.-
Keeping the global warming and climate change issues in mind, various efforts are being taking placeworldwide to separate/capture CO2 fromflue gas mixture in order to reduce its emission in theatmosphere. Therefore, in this work, we improve the gas transport properties of polyetherimide (PEI)membrane for CO2/N2 separation by embedding three differentfillers of two-dimensional materials suchas graphene oxide (GO), molybdenum disulfide (MoS2), and hexagonal boron nitride (h-BN) in its matrix. Additionally, the effect of different weight fraction (0.5,1.5, and 2.5 wt.%) of thesefillers on the CO2/N2 gasseparation performance have been investigated. Membrane morphology, variation in the chemical bondsand membrane surface roughness were observed by employing Field Emission Gun Scanning ElectronMicroscopy (FEG-SEM), Fourier Transform Infrared Spectroscopy (FTIR), and Atomic Force Microscopy(AFM) analysis. Results obtained from the gas permeation showed that PEI embodied with GO exhibitedhigher gas permeation compared to when embodied with h-BN and MoS2. However, the maximumseparation was achieved with MoS2 particles.