CO2 separation using PDMS/ZSM-5 zeolite composite membrane

Seed-assisted OSDA-free synthesis of ZSM-5 zeolite and its application in dehydrogenation of propane

“…So far seeding synthesis trend in the literature has been mostly around the usage of expensive templates such as tetrapropylammonium hydroxide (TPAOH) to achieve small uniform crystals but the yield of the assay has been lowered [17][18][19][20]. In this paper we produced ZSM-5 micro crystals through a seed surface crystallization method employing TPABr-silicalite-1 core crystals.…”

Enhanced gas separation performance of PSF membrane after modification to PSF/PDMS composite membrane in CO2/CH4 separation

“…structure as compared to the composite membrane with lesser coating time. 38 Voids were also observed for the membrane with coating time of 20 and 30 min, but these voids and pore structure was observed to be different than the results of the membrane with 10 min coating time. It can be concluded from SEM results that microstructure of pure PSF is different from PSF/PDMS composite membrane, which indicates that PSF membrane was successfully modified to PSF/PDMS composite membrane.…”

Biomethane generation from biogas upgrading by means of thin-film composite membrane comprising Linde T and fluorinated polyimide: optimization of fabrication parameters

“…In addition, although enhancement of gas separation performance has been reported via application of zeolite-based composite membranes, the distribution of llers in the polymer phase remains a severe challenge in producing membranes, requiring further understanding of the fabrication parameters. Indeed, most of the researches reported on composite membranes have been dedicated to merely studying the enhancement of permeability and selectivity of the membranes, [31][32][33] whereas studies on nding an appropriate approach for the formation of zeolite-based composite membranes via optimization of the fabrication parameters have been scarce. A thorough attempt at examining the fabrication variables in detail can have a substantial inuence on the formation of membranes.…”