TY  - JOUR
A1  - Chew, T.L.
A1  - Ding, S.H.
A1  - Oh, P.C.
A1  - Ahmad, A.L.
A1  - Ho, C.-D.
Y1  - 2020///
TI  - Functionalized KIT-6/polysulfone mixed matrix membranes for enhanced CO2 /CH4 gas separation
SN  - 20734360
ID  - scholars12671
SP  - 1
IS  - 10
N1  - cited By 5
PB  - MDPI AG
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85093840286&doi=10.3390%2fpolym12102312&partnerID=40&md5=780617e695977a1444c038d14744f5f9
EP  - 11
KW  - Carbon dioxide; Fabrication; Fourier transform infrared spectroscopy; Permeation; Scanning electron microscopy; Separation
KW  -  Desorption analysis; Field emission scanning electron microscopes; Fourier transform infrared; Functionalizations; Korea advanced institute of science and technologies; Mixed matrix membranes; Separation performance; Triethoxysilane
KW  -  Gas permeable membranes
VL  - 12
JF  - Polymers
N2  - The development of mixed matrix membranes (MMMs) for effective gas separation has been gaining popularity in recent years. The current study aimed at the fabrication of MMMs incorporated with various loadings (0â??4 wt) of functionalized KIT-6 (NH2 KIT-6) KIT: Korea Advanced Institute of Science and Technology for enhanced gas permeation and separation performance. NH2 KIT-6 was characterized by field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR), and N2 adsorptionâ??desorption analysis. The fabricated membranes were subjected to FESEM and FTIR analyses. The effect of NH2 KIT-6 loading on the CO2 permeability and ideal CO2 /CH4 selectivity of the fabricated membranes were investigated in gas permeation and separation studies. The successfulness of (3-Aminopropyl) triethoxysilane (APTES) functionalization on KIT-6 was confirmed by FTIR analysis. As observed from FESEM images, MMMs with no voids in the matrix were successfully fabricated at a low NH2 KIT-6 loading of 0 to 2 wt%. The CO2 permeability and ideal CO2 /CH4 selectivity increased when NH2 KIT-6 loading was increased from 0 to 2 wt%. However, a further increase in NH2 KIT-6 loading beyond 2 wt% led to a drop in ideal CO2 /CH4 selectivity. In the current study, a significant increase of about 47% in ideal CO2 /CH4 selectivity was achieved by incorporating optimum 2 wt% NH2 KIT-6 into the MMMs. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
AV  - none
ER  -