[EMIM][Tf2N]-Modified silica as filler in mixed matrix membrane for carbon dioxide separation

Siti Nur Alwani, Shafie and Nik Abdul Hadi, Md Nordin and Muhammad Roil, Bilad and Nurasyikin, Misdan and Norazlianie, Sazali and Zulfan Adi, Putra and Mohd Dzul Hakim, Wirzal and Alamin, Idris and Juhana, Jaafar and Zakaria, Man (2021) [EMIM][Tf2N]-Modified silica as filler in mixed matrix membrane for carbon dioxide separation. Membranes, 11 (371). pp. 1-14. ISSN 2077-0375. (Published)

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: This study focuses on the effect of modified silica fillers by [EMIN][Tf2N] via physical adsorption on the CO2 separation performance of a mixed matrix membrane (MMM). The ILmodified 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

Item Type: Article
Additional Information: This article belongs to the Special Issue Advanced Polymeric Membranes for Energy & Environment)
Uncontrolled Keywords: CO2 separation; mixed matrix membrane; silica; [EMIM][TF2N]; ionic liquid
Subjects: T Technology > T Technology (General)
T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Institute of Postgraduate Studies
College of Engineering
Depositing User: Miss. Ratna Wilis Haryati Mustapa
Date Deposited: 11 Jun 2021 13:16
Last Modified: 11 Jun 2021 13:16
URI: http://umpir.ump.edu.my/id/eprint/31522
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