Cell Membrane‐Inspired Graphene Nanomesh Membrane for Fast Separation of Oil‐in‐Water Emulsions

Graphene exhibits fascinating prospects for preparing high-performance membranes with fast water transport, due to its low friction and extreme thinness. However, graphene-assembled membranes, each molecule passing through the membrane should bypass many graphene sheets, which lengthens molecular pathways increases mass transfer resistance. Herein, a nanomesh (GNM) is fabricated that inspired by cell including aquaporins their hydrophilic gate selective transport hydrophobic channel water, thus resulting in as well polymer brushes on surface fouling GNM synthesized etching nanopores oxide (GO) nanosheets significantly shorten channels, whereas sheets lead friction; combination, ultra-fast, flux achieved. Also, chitosan utilized modify construct hydration layer, suppresses foulants from touching surface. Accordingly, permeance of membrane-inspired reaches almost 4000 L m–2 h–1 bar–1, about 260 times GO membrane, show superior antifouling properties separating various surfactant-stabilized oil-in-water emulsions.