Disclosed herein are ceramic selective membranes and methods of forming the ceramic selective membranes by forming a selective silica ceramic on a porous membrane substrate.

The present disclosure describes a method of manufacturing a molded filter body, by which a molded filter body can be produced more easily.

A method of manufacturing a molded filter body having a layer of a filtering material includes: forming a layer of a support mixed with a template, on a surface of the layer of the filtering material; and forming water passage holes in the layer of the support by removing the template.

A method for producing a crystalline film comprising zeolite and/or zeolite-like crystals on a porous substrate is described. The method has the steps of: providing a porous support; modifying at least a surface of the top-layer of said porous support by treatment with a composition having one or more cationic polymer(s); rendering at least the outer surface of said porous support hydrophobic by treatment with a composition having one or more hydrophobic agent(s); subjecting said treated porous support to a composition having zeolite and/or zeolite-like crystals thereby depositing and attaching zeolite and/or zeolite-like crystals on said treated porous support, and growing a crystalline film of zeolite and/or zeolite-like crystals on said treated porous support and calcination. Crystalline films find use in a variety of fields such as in the production of membranes, catalysts etc.

The present invention relates to a method for producing a porous monolayer polymer membrane, to a porous monolayer polymer membrane, and to the use of the polymer membrane for filtration.

A method of fabricating an inorganic fibrous membrane, the method comprising the steps of: grafting sulfonated graphene oxide onto a scaffold of inorganic nanofibers to form a suspension of heterojunctions of the sulfonated graphene oxide and the scaffold; filtering the suspension through a support to obtain heterojunctions on the support; drying the heterojunctions on the support; and removing the support to obtain the inorganic fibrous membrane.

The present invention relates to a method of preparing a perm-selective porous membrane and a method of separating gases using the prepared porous membrane. According to the present invention, a membrane is synthesized using a hierarchically structured alumina porous support by a counter diffusion method. During this synthesis, the diffusion rate of metal ions loaded on the porous support is controlled by controlling the pore size of the porous support, and the position at which the membrane is synthesized is controlled by synthesizing the membrane inside the support. This can increase the physical stability of the membrane and make the membrane thicker so as to ensure higher H.sub.2/CO.sub.2 separation factors.

The present invention relates to a composite semipermeable membrane including: a supporting membrane including a substrate and a porous supporting layer; and a separation functional layer disposed on the porous supporting layer, in which the separation functional layer includes: a crosslinked polyamide; and a hydrophilic polymer which is a polymer of a monomer having an ethylenically unsaturated group, and a surface of the separation functional layer has a ratio of the number of oxygen atoms to the number of nitrogen atoms (O/N ratio), both determined by X-ray photoelectron spectrometry, of 1.5-10, and a standard deviation of the O/N ratio of 0.15 or larger.

A method for preparing an adsorptive media for binding biologic molecules comprising immersing a macroporous support in a first solution of a coupling reagent in a solvent solution for attachment of said coupling reagent to form coupling groups; and, immersing said macroporous support in an incubating solution selected from the group consisting of ligand, nucleotide, oligonucleotide, peptide, polypeptide, protein, and enzyme solutions having an affinity to a biologic target molecule to couple one of said ligands, nucleotides, oligonucleotides, peptides, polypeptides, proteins, and enzymes to at least a portion of said coupling groups of said macroporous support for binding with said biologic target molecule when exposed to said macroporous support.

The invention concerns a method for producing a crystalline film comprising zeolite and/or zeolite-like crystals on a porous substrate The method includes the steps of: a) providing a porous substrate, b) rendering at least a part of said porous substrate hydrophobic by treatment with a composition comprising one or more hydrophobic agent(s), d) subjecting said treated porous substrate to a composition comprising zeolite and/or zeolite-like crystals thereby depositing and attaching zeolite and/or zeolite-like crystals on said treated porous substrate, and e) growing a crystalline film comprising zeolite and/or zeolite-like crystals on said treated porous substrate obtained in step d). Crystalline films find use in a variety of fields such as in the production of membranes, catalysts etc.

This invention provides a new high flux reverse osmosis (RO) membrane comprising a nanoporous polyethersulfone (PES)/polyethylene oxide-polysilsesquioxane (PEO-Si) blend support membrane (PES/PEO-Si) comprising a polyethylene oxide-polysilsesquioxane (PEO-Si) polymer and a polyethersulfone (PES) polymer, a hydrophilic polymer inside the pores on the skin layer surface of the polyethersulfone/polyethylene oxide-polysilsesquioxane blend support membrane, and a thin, nanometer layer of cross-linked polyamide on the skin layer surface of said polyethersulfone/polyethylene oxide-polysilsesquioxane blend support membrane, and a method of making such a membrane. This invention also provides a method of using the new high flux reverse osmosis membrane comprising nanoporous PES/PEO-Si blend support membrane for water purification.