emimtf2n-modified silica as filler in mixed matrix membrane for carbon dioxide separation

Shafie, S.N.A. and Md Nordin, N.A.H. and Bilad, M.R. and Misdan, N. and Sazali, N. and Putra, Z.A. and Wirzal, M.D.H. and Idris, A. and Jaafar, J. and Man, Z. (2021) emimtf2n-modified silica as filler in mixed matrix membrane for carbon dioxide separation. Membranes, 11 (5).

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Abstract

This study focuses on the effect of modified silica fillers by EMINTf2 N via physical adsorption on the CO2 separation performance of a mixed matrix membrane (MMM). The IL-modified silica was successfully synthesized as the presence of fluorine element was observed in both Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectrometer (XPS) analyses. The prepared MMMs with different loadings of the IL-modified silica were then compared with an unmodified silica counterpart and neat membrane. The morphology of IL-modified MMMs was observed to have insignificant changes, while polymer chains of were found to be slightly more flexible compared to their counterpart. At 2 bar of operating pressure, a significant increase in performance was observed with the incorporation of 3 wt% Sil-IL fillers compared to that of pure polycarbonate (PC). The permeability increased from 353 to 1151 Barrer while the CO2 /CH4 selectivity increased from 20 to 76. The aforementioned increment also exceeded the Robeson upper bound. This indicates that the incorporation of fillers surface-modified with ionic liquid in an organic membrane is worth exploring for CO2 separation. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Item Type: Article
Impact Factor: cited By 1
Uncontrolled Keywords: Fillers; Fourier transform infrared spectroscopy; Ionic liquids; Morphology; Separation; Silica; Spectrometers, Both Fourier Transform Infrared; Carbon dioxide separation; Mixed matrix membranes; Operating pressure; Organic membranes; Physical adsorption; Surface-modified; X ray photoelectron spectrometers, Carbon dioxide
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 25 Mar 2022 02:08
Last Modified: 25 Mar 2022 02:08
URI: http://scholars.utp.edu.my/id/eprint/29534

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