Abstract: The present disclosure relates to process for preparing a semi-permeable membrane comprising a porous support membrane and a thin film composite (TFC) layer, comprising providing an aqueous phase comprising a polyfunctional amine monomer, covering a surface of a porous support membrane with the aqueous phase, providing an organic phase comprising a poly functional acy 1 halide monomer and a pore forming agent, covering the aqueous phase with the organic phase and allowing the polyfunctional amine monomer. the polyfunctional acyl halide monomer, and the pore forming agent to perform an interfacial polymerization reaction to form a polyamide TFC layer. The present disclosure further relates to a membrane for water filtration, in particular a membrane for performing forward osmosis (FO), reverse osmosis (RO), or pressure assisted forward osmosis (PAFO), the membrane comprising a polyamide TFC layer.

Abstract: The present invention relates to an anti-fouling, semi-permeable membrane comprising a porous support layer, a thin film composite (TFC) layer formed on a surface of the support layer, and a cross-linked polyvinyl alcohol (PVA) layer formed on top of the TFC layer, wherein the cross-linked PVA layer is the reaction product of PVA and a cross-linking agent, said cross-linking agent being a polybasic acid comprising three or more acid groups or precursors thereof. The obtained membrane shows a high water flux and a low roughness suitable for an effective membrane notable for feed solution having a tendency of fouling the membrane.

Abstract: A suite of polymer/zeolite nanocomposite membranes. The polymer backbone is preferably a film forming fluorinated sulfonic acid containing copolymer, such as a Teflon type polymer, a perfluorinated polymer, or a perfluorinated polymer with sulfonic groups. The zeolites formed in accordance with the present invention and which are used in the membranes are plain, phenethyl functionalized and acid functionalized zeolite FAU(Y) and BEA nanocrystals. The zeolite nanocrystals are incorporated into polymer matrices for membrane separation applications like gas separations, and in polymer-exchange-membrane fuel cells. For the purpose of developing zeolite-polymer nanocomposite membranes, the zeolite nanocrystals are size-adjustable to match the polymer-network dimensions.

Abstract: A suite of polymer/zeolite nanocomposite membranes. The polymer backbone is preferably a film forming fluorinated sulfonic acid containing copolymer, such as a Teflon type polymer, a perfluorinated polymer, or a perfluorinated polymer with sulfonic groups. The zeolites formed in accordance with the present invention and which are used in the membranes are plain, phenethyl functionalized and acid functionalized zeolite FAU(Y) and BEA nanocrystals. The zeolite nanocrystals are incorporated into polymer matrices for membrane separation applications like gas separations, and in polymer-exchange-membrane fuel cells. For the purpose of developing zeolite-polymer nanocomposite membranes, the zeolite nanocrystals are size-adjustable to match the polymer-network dimensions.

Abstract: A suite of polymer/zeolite nanocomposite membranes. The polymer backbone is preferably a film forming fluorinated sulfonic acid containing copolymer, such as a Teflon type polymer, a perfluorinated polymer, or a perfluorinated polymer with sulfonic groups. The zeolites formed in accordance with the present invention and which are used in the membranes are plain, phenethyl functionalized and acid functionalized zeolite FAU(Y) and BEA nanocrystals. The zeolite nanocrystals are incorporated into polymer matrices for membrane separation applications like gas separations, and in polymer-exchange-membrane fuel cells. For the purpose of developing zeolite-polymer nanocomposite membranes, the zeolite nanocrystals are size-adjustable to match the polymer-network dimensions.

Abstract: A suite of polymer/zeolite nanocomposite membranes. The polymer backbone is preferably a film forming fluorinated sulfonic acid containing copolymer, such as a Teflon type polymer, a perfluorinated polymer, or a perfluorinated polymer with sulfonic groups. The zeolites formed in accordance with the present invention and which are used in the membranes are plain, phenethyl functionalized and acid functionalized zeolite FAU(Y) and BEA nanocrystals. The zeolite nanocrystals are incorporated into polymer matrices for membrane separation applications like gas separations, and in polymer-exchange-membrane fuel cells. For the purpose of developing zeolite-polymer nanocomposite membranes, the zeolite nanocrystals are size-adjustable to match the polymer-network dimensions.

Abstract: A suite of polymer/zeolite nanocomposite membranes. The polymer backbone is preferably a film forming fluorinated sulfonic acid containing copolymer, such as a Teflon type polymer, a perfluorinated polymer, or a perfluorinated polymer with sulfonic groups. The zeolites formed in accordance with the present invention and which are used in the membranes are plain, phenethyl functionalized and acid functionalized zeolite FAU(Y) and BEA nonocrystals. The zeolite nanocrystals are incorporated into polymer matrices for membrane separation applications like gas separations, and in polymer-exchange-membrane fuel cells. For the purpose of developing zeolite-polymer nanocomposite membranes, the zeolite nanocrystals are size-adjustable to match the polymer-network dimensions.

Abstract: A suite of polymer/zeolite nanocomposite membranes. The polymer backbone is preferably a film forming fluorinated sulfonic acid containing copolymer, such as a Teflon type polymer, a perfluorinated polymer, or a perfluorinated polymer with sulfonic groups. The zeolites formed in accordance with the present invention and which are used in the membranes are plain, phenethyl functionalized and acid functionalized zeolite FAU(Y) and BEA nonocrystals. The zeolite nanocrystals are incorporated into polymer matrices for membrane separation applications like gas separations, and in polymer-exchange-membrane fuel cells. For the purpose of developing zeolite-polymer nanocomposite membranes, the zeolite nanocrystals are size-adjustable to match the polymer-network dimensions.