IJEP 42(6): 716-721 : Vol. 42 Issue. 6 (June 2022)
Sant Gadge Baba Amravati University, Department of Chemical Technology, Amravti – 444 602, Maharashtra, India
Abstract
Pure PVAc and PVAc-MgO (polyvinyl acetate-magnesium oxide) nanocomposite membranes were fabricated by solution casting and solvent evaporation methods. Nanocomposite membranes were characterized by the x-ray diffractometer (XRD), differential scanning calorimetry (DSC) and thermogravimetric (TGA) analyser to study the effect of MgO nanoparticles loading on structure, glass transition temperature (Tg) and thermal stability of membrane. The performance of prepared membranes was evaluated in terms of permeability and selectivity of gases to study the effect of MgO loading on gas transport properties. CO2 + H2 mixed gas permeation test was carried out at fixed 24ºC temperature and 3 bar pressure. Obtained result shows that addition of MgO nanoparticles enhances the amorphous regions, thermal stability and glass transition temperature of membrane. Mixed gas permeation test shows that addition of MgO nanoparticles in the PVAc increases permeability of both CO2 and H2 and decreases H2/CO2 selectivity. The highest permeability of CO2 and H2 gas for PVAc-20% MgO nanocomposite membrane was found to be 9.889 and 12.120 barrer.
Keywords
Nanocomposite membrane, Permeability, Selectivity, Polymeric inorganic PVAc-MgO nanocomposite membrane
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