In this paper, composite membranes based on polyvinyl chloride (PVC) has been prepared and then filled with 0.125-0.250 wt% of iso-phthalic acid/aluminium nitrate nanoparticles. All of the polymeric and nanocomposite membranes were fabricated by solution casting using tetrahydrofuran (THF) solvent. The performance of the prepared membranes was studied for CO2/N2 at the feed pressure of 2.5, 3, and 3.5 bar at 35°C. Results showed that in most cases, increasing the percentage of PVC increased the permeability of CO2/N2. Also, with the addition of iso-phthalic acid/aluminium nitrate nanoparticles in the membrane, gas permeability in all cases increased. The highest gas pair selectivity for CO2/N2 could be obtained from PVC (30wt%) loaded with 0.250wt% of iso-phthalic acid/aluminium nitrate nanoparticles. For characterization of samples, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and atomic force microscopy (AFM) were used. These results also suggest that PVC membranes with the higher loading percentage of nanoparticles are good candidates for the CO2/N2 separation, offering better selectivity for CO2/
کلید واژگان :Keywords: nanocomposite membranes, gas separation performance, iso-phthalic acid/aluminium nitrate nanocomposite, polyvinyl chloride.
ارزش ریالی : 600000 ریال
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