Gas permeation and selectivity characteristics of PSf based nanocomposite membranes

This study highlights successful development and evaluates the characteristics of graphene-derived nanohybrids (SGO and RSGO) incorporated MMM systems. Pristine GO and modified SiO2 (mSiO(2)) based membranes have also been prepared to assay the established synergistic effect on the performance. FTIR and WCA studies were carried out to endorse the insertion of different nanofillers into the virgin PSf matrix. SEM with EDS and AFM were accomplished to substantiate the distribution and dispersion pattern of the fillers within the base matrix. From the mechanical analysis, 46% improved tensile strength was perceived for the hybrid MMM system containing SGO. Finally, the dexterity was documented by analyzing the permeation behavior of the prepared membranes towards the selected O-2/N-2 gas pair. The hybrid PSf/SGO system displayed 605% and 801% higher permeabilities for O-2 as compared to the parent counterparts: (PSf/mSiO(2), PSf/GO), respectively. Meanwhile, PSf/RSGO membrane exhibited a slightly reduced performance than the former hybrid system.