Open AccessEnhanced gas permeation performance of mixed matrix membranes containing polysulfone and modified mesoporous MCM-41
Author(s) -
Kaveh Abbasi Kololi,
Seyed Mostafa Tabatabaei Qomsheh,
Maziar Noei,
Masoud Saberi
Publication year - 2021
Publication title -
journal of the serbian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 45
eISSN - 1820-7421
pISSN - 0352-5139
DOI - 10.2298/jsc210219034a
Subject(s) - polysulfone , membrane , permeation , chemical engineering , materials science , selectivity , fourier transform infrared spectroscopy , mesoporous material , gas separation , particle size , mesoporous silica , particle (ecology) , chemistry , organic chemistry , catalysis , engineering , geology , biochemistry , oceanography
The aim of this study was the development of mixed matrix membranes (MMMs) based on silica MCM-41 dispersed in polysulfone (PSf) for the separation of carbon dioxide from methane. For this purpose, MCM-41 was synthesized by a hydrothermal method and was modified with 3-aminopropyltrietoxysilane (APTES). SEM, FTIR, BET and XRD analyses were used for characterization of the modified and unmodified particles. Then, various MMMs containing PSf at different weight percents (5, 10, 15 and 20) of modified and unmodified particles were prepared and the morphology and structure of the prepared membranes were studied using SEM and XRD analyses. Regardless of the particle type, the addition of MCM-41 to PSf caused an increase in gas permeability compared to a neat PSf membrane. Adding unmodified particles to PSf matrix resulted in undesirable effects, including particle agglomeration and/or the formation of interfacial voids. The MMMs with modified MCM-41 showed relatively better separation performance compared to MMMs with unmodified MCM-41. As a result, the MMM of PSf with 20 wt. % modified MCM-41 showed a significant increase in selectivity of carbon dioxide/methane and the value of selectivity reached 25.24.