Organic-inorganic hybrid membranes for removal of benzene from an aqueous solution by pervaporation

摘要: Preparation of organic-inorganic hybrid membranes and their pervaporation permeation separation characteristics for an aqueous solution 0.05 wt.-% benzene are described. In this study, we prepared organic-inorganichybrid by the sol-gel reaction tetraethoxysilane (TEOS) as inorganic component with poly(methyl methacrylate-co-vinyltriethoxysilane) (P(MMA-co-VTES)) poly(butyl (P(BMA-co-VTES)) organic components. When dilute (0.05 wt.-%) was permeated through P(MMA-co-VTES)/TEOS P(BMA-co-VTES)/TEOS membranes, concentration in permeate all higher than that feed solution. This result demonstrates these selective containing benzene. The benzene/water selectivity membrane about 20 times membrane. Specifically, a TEOS content 75 mol-% showed highest benzene/ water selectivity. depended significantly on cross-linked structures formed VTES TEOS.