Abstract: An article comprised of an oxidized carbon nanotube (CNT) membrane is disclosed. Incorporation of the article in a filtration system is further disclosed. A method for oxidizing a surface of a CNT membrane, e.g., by applying a direct-current (DC) potential in/on said CNT membrane is further disclosed.

Abstract: There is provided a composite membrane, which may include an electronically conductive asymmetric porous support and an electro-polymerized selective layer. There is also provided a composite membrane for water application(s), which may include an electronically conductive porous support and an electro-polymerized selective layer. Moreover, there is provided a composite membrane for gas application(s), which may include an electronically conductive asymmetric porous support and an electro-polymerized selective layer. There is also provided a membrane system which may include at least one composite membrane which may include an electronically conductive asymmetric porous support and an electro-polymerized selective layer. In addition there is provided a method for the preparation of a composite membrane.

Abstract: A method for modifying the surface of nanofiltration (NF) and reverse osmosis (RO) composite membranes, comprising placing said composite membrane in a suitable vessel having a feed inlet opening and a permeate outlet opening, feeding an aqueous solution of one or more monomer(s) and free radical initiator into said vessel through said inlet opening, generating transmembrane pressure, thereby creating a flux across said membrane into said permeate outlet opening and causing said monomer(s) graft polymerize in the presence of said free radical initiator onto one face of said composite membrane.

Abstract: The present invention discloses a water membrane comprising a lipid bilayer supported on a single side thereof on a water permeable dense support layer, this lipid bilayer being composed of one or more lipids and aquaporin proteins are embedded therein, further wherein the water permeable dense support layer is impermeable to the lipids and to the aquaporin proteins. Also are provided a method for the preparation of these membranes and uses thereof in water filtration applications.

Abstract: Process for producing ion exchange membranes. A matrix material that comprises a polymeric component chosen from the group consisting of monomeric and oligomeric polymer precursors and cross-linkable polymers is provided. Ion cation or anion exchange particles, or proton or hydroxyl or ion conducting particles, or cation or anion exchange polymers, or proton or hydroxyl or ion conducting polymers are introduced in the matrix. The particles are mixed or the polymer is dissolved with the matrix. The resulting mixture is formed into membrane configuration. The particles or the domains of the polymer formed by polymer-matrix phase separation upon solvent evaporation or cooling, are ordered by an electric field.

Abstract: There is provided a composite membrane, which may include an electronically conductive asymmetric porous support and an electro-polymerized selective layer. There is also provided a composite membrane for water application(s), which may include an electronically conductive porous support and an electro-polymerized selective layer. Moreover, there is provided a composite membrane for gas application(s), which may include an electronically conductive asymmetric porous support and an electro-polymerized selective layer. There is also provided a membrane system which may include at least one composite membrane which may include an electronically conductive asymmetric porous support and an electro-polymerized selective layer. In addition there is provided a method for the preparation of a composite membrane.

Abstract: Process for producing ion exchange membranes. A matrix material that comprises a polymeric component chosen from the group consisting of monomeric and oligomeric polymer precursors and cross-linkable polymers is provided. Ion cation or anion exchange particles, or proton or hydroxyl or ion conducting particles, or cation or anion exchange polymers, or proton or hydroxyl or ion conducting polymers are introduced in the matrix. The particles are mixed or the polymer is dissolved with the matrix. The resulting mixture is formed into membrane configuration. The particles or the domains of the polymer formed by polymer-matrix phase separation upon solvent evaporation or cooling, are ordered by an electric field.