▎ 摘　　要

NOVELTY - Water separation membrane comprises a support substrate and a graphene oxide membrane disposed on the support substrate, the graphene oxide membrane including a graphene oxide nanosheet (210) bonded to an adjacent graphene oxide nanosheet. USE - Water separation membrane used for water purification for military operation missions and for humanitarian relief to disaster-ridden and impoverished areas, on-site treatment of hydrofracking flowback water, renewable energy production and drug delivery and artificial organ development. ADVANTAGE - The water separation membrane can provide a safe water supply in a more efficient, environmentally sustainable manner and improves membrane performance (e.g., flux, antibacterial property, fouling resistance, photocatalytic property) or to optimize the operation of membrane processes (e.g., energy consumption, maintenance requirement). Because the use of these nanomaterials often relies on expensive materials, costly facilities, and highly complex synthesis, it becomes very desirable to make high-performance water separation membranes using low-cost raw materials and facile yet scalable synthesis methods. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for water separation, which involves disposing a graphene oxide membrane on a support substrate, where the graphene oxide membrane includes a graphene oxide nanosheet and bonding the graphene oxide nanosheet to an adjacent graphene oxide nanosheet. DESCRIPTION OF DRAWING(S) - The drawing illustrates layer-by-layer (LbL) assembly of graphene oxide nanosheets. 200Layer-by-layer assembly 210Graphene oxide nanosheet 230Unwanted solutes 240Polysulfone support 242Polydopamine layer