• 专利标题:   Membrane assembly used in water filtration system comprises non-metallic, porous substrate, graphene oxide membrane and chemical linker interface including adhesion promoter and flux promoter including silane molecules.
  • 专利号:   US11167250-B1
  • 发明人:   WHEELER D R, ZAVADIL K R, BIEDERMANN L, HIBBS M
  • 专利权人:   NAT TECHNOLOGY ENG SOLUTIONS SANDIA
  • 国际专利分类:   B01D067/00, B01D069/10, B01D069/12, B01D071/02, C01B032/10, C01B032/198
  • 专利详细信息:   US11167250-B1 09 Nov 2021 B01D-071/02 202222 English
  • 申请详细信息:   US11167250-B1 US576426 19 Sep 2019
  • 优先权号:   US576426

▎ 摘  要

NOVELTY - Membrane assembly comprises: a non-metallic, porous substrate; a graphene oxide membrane formed over the non-metallic, porous substrate; and a chemical linker interface (212) covalently binding the graphene oxide membrane to the non-metallic, porous substrate, where the chemical linker interface includes an adhesion promoter for bonding the graphene oxide membrane to the non-metallic, porous substrate and a flux promoter for separating the non-metallic, porous substrate from the graphene oxide membrane in a spaced-apart, overlying relation and the flux promoter includes many silane molecules that bond to the non-metallic, porous substrate on one end and include a hydrophilic region on the opposite end. USE - The assembly is useful in water filtration system (claimed). ADVANTAGE - The assembly: utilizes graphene oxide nanosheets within the membranes and membrane assemblies that provide chlorine tolerance and have biocidal properties; and is fabricated using green, scalable chemistries with a process amenable to integration into spiral-wound membrane element. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (a) a water filtration system comprising the membrane assembly; (b) assembling a membrane structure (200); and (c) an article comprising a porous support, a graphene oxide membrane and a binding layer. DESCRIPTION OF DRAWING(S) - The figure illustrates schematic view of a portion of a membrane assembly. Structure (200) Layered graphene oxide membrane (210) Chemical linker interface (212) Support layer (214) Many layered graphene oxide flakes (216)