[EMIM][Tf2N]-Modified Silica as Filler in Mixed Matrix Membrane for Carbon Dioxide Separation
Siti Nur Alwani Shafie,
Nik Abdul Hadi Md Nordin,
Muhammad Roil Bilad,
Nurasyikin Misdan,
Norazlianie Sazali,
Zulfan Adi Putra,
Mohd Dzul Hakim Wirzal,
Alamin Idris,
Juhana Jaafar,
Zakaria Man
Affiliations
Siti Nur Alwani Shafie
Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), Seri Iskandar 32610, Malaysia
Nik Abdul Hadi Md Nordin
Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), Seri Iskandar 32610, Malaysia
Muhammad Roil Bilad
Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), Seri Iskandar 32610, Malaysia
Nurasyikin Misdan
Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja 86400, Malaysia
Norazlianie Sazali
Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), Faculty of Mechanical Engineering, Universiti Malaysia Pahang (UMP), Pekan 26600, Malaysia
Zulfan Adi Putra
PETRONAS Group Technical Solutions, Project Delivery and Technology, PETRONAS, Kuala Lumpur 50050, Malaysia
Mohd Dzul Hakim Wirzal
Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), Seri Iskandar 32610, Malaysia
Alamin Idris
Department of Engineering and Chemical Sciences, Karlstad University, SE-65188 Karlstad, Sweden
Juhana Jaafar
Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia
Zakaria Man
Department of Chemical Engineering, Universiti Teknologi PETRONAS (UTP), Seri Iskandar 32610, Malaysia
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 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.
