A separation membrane structure comprises a porous support, and a separation membrane formed on the porous support. The separation membrane has an average pore diameter of greater than or equal to 0.32 nm and less than or equal to 0.44 nm. The separation membrane includes addition of at least one of a metal cation or a metal complex that tends to adsorb nitrogen in comparison to methane.

The present disclosure relates to a phenyl-modified polydimethylsiloxane (PDMS) separation membrane, a fabrication method thereof, and a use thereof in the separation of an aromatic compound, and belongs to the technical field of separation membrane materials. A phenyl-modified PDMS separation membrane comprising a substrate layer and a selective layer is provided.

A gas separation membrane includes a first layer and a second layer that is provided at the surface on one side of the first layer and that includes a compound having gas separation ability. The average thickness of the second layer is smaller than an average thickness of the first layer. The second layer is an inkjet coating. The compound preferably includes a structure derived from PET, POM, PLA, PDMS, cellulose, or a coupling agent.

A gas separation membrane that separates, by selective transmission, carbon dioxide from a mixed gas containing the carbon dioxide and nitrogen, the gas separation membrane including: a first layer; and a second layer provided at one surface of the first layer and composed of a compound having carbon dioxide separation ability, wherein an average thickness of the second layer is smaller than an average thickness of the first layer, and the second layer satisfies 0.56<?.sub.2, where an activity coefficient of nitrogen in the second layer, calculated by the COSMO-RS method, is ?.sup.2.sub.N2, an activity coefficient of carbon dioxide in the second layer is ?.sup.2.sub.CO2, and a separation performance parameter of the second layer at 25? C. is ?.sub.2=ln(?.sup.2.sub.N2)?ln(?.sup.2.sub.CO2).

The present disclosure provides an acryloyloxy-terminated polydimethylsiloxane (AC-PDMS)-based thin-film composite (TFC) membrane, and a preparation method and use thereof. In the preparation method, a simple ultraviolet (UV)-induced monomer polymerization strategy based on high UV reactivity among acryloyloxy groups is adopted to prepare the AC-PDMS-based TFC membrane. The high UV reactivity among AC-PDMS monomers can induce the rapid curing of a casting solution to enable the formation of an ultra-thin selective layer and the inhibition of pore penetration for a substrate. By optimizing a UV wavelength, an irradiation time, and a polymer concentration, the prepared AC-PDMS-based TFC membrane has a CO.sub.2 penetration rate of 9,635 GPU and a CO.sub.2/N.sub.2 selectivity of 11.5. The UV-induced monomer polymerization strategy based on material properties provides a novel efficient strategy for preparing an ultra-thin PDMS-based membrane, which can be used for molecular separation.

Described are filter membranes coated with a polyamide, filters and filter cartridges that include the filter membranes, and methods of using and making the filter membranes.

An aspect of the present invention relates to a separation membrane for selectively separating a component (A) from a fluid containing the component (A) and a component (B), wherein the separation membrane has a first surface and a second surface opposite to the first surface, an affinity of the first surface side of the separation membrane for the component (A) is higher than an affinity of the first surface side of the separation membrane for the component (B), and an affinity of the second surface side of the separation membrane for the component (A) is higher than the affinity of the first surface side of the separation membrane for the component (A).

Various examples are provided for highly selective and ultra-high throughput filtration using bilayer two-dimensional (2D) material laminates and highly absorptive medium of 2D material laminates or solution dispersions. In one example, a 2D material bilayer membrane includes a first membrane layer; an interlinking layer of interlinking molecules disposed on the first membrane layer; and a second membrane layer disposed on the interlinking layer. The interlinking molecules electrostatically or covalently interlink the second membrane layer and first membrane layer.

A wound treating article, system and kit, and methods of assembly and treating are provided where nanoporous isoporous membranes are pathogen tuned are combined with resilient, flexible or elastic supports to provide tailored wound treating bandages and/or kits for the medical industry.

The objective of the present invention is to provide a hydrogen-releasing film, a composite hydrogen-releasing film and a hydrogen-releasing laminated film that are not prone to embrittlement in the usage environmental temperatures of electrochemical elements. The hydrogen-releasing film containing an alloy, wherein the alloy is a PdAu alloy, and the Au content in the PdAu alloy is 15 mol % or more.