Different 2D materials based polyetherimide mixed matrix membranes for CO2/N2 separation

Publication date: 25 January 2020Source: Journal of Industrial and Engineering Chemistry, Volume 81Author(s): Ashwin R. Kamble, Chetan M. Patel, Z.V.P. MurthyAbstractKeeping the global warming and climate change issues in mind, various efforts are being taking place worldwide to separate/capture CO2 from flue gas mixture in order to reduce its emission in the atmosphere. Therefore, in this work, we improve the gas transport properties of polyetherimide (PEI) membrane for CO2/N2 separation by embedding three different fillers of two-dimensional materials such as 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 these fillers on the CO2/N2 gas separation performance have been investigated. Membrane morphology, variation in the chemical bonds and membrane surface roughness were observed by employing Field Emission Gun Scanning Electron Microscopy (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 exhibited higher gas permeation compared to when embodied with h-BN and MoS2. However, the maximum separation was achieved with MoS2 particles.Graphical abstract
Source: Journal of Industrial and Engineering Chemistry - Category: Chemistry Source Type: research