Sharp molecular-sieving of alcohol-water mixtures over phenyldiboronic acid pillared graphene oxide framework (GOF) hybrid membrane

A submicron thick diboronic acid linked GOF/polyvinyl alcohol hybrid membrane was prepared for the first time. The uniform inter-spacing of the GOF membrane excludes the diffusion of large molecules based on a molecular sieving mechanism. It exhibits high stability and excellent sieving performance in solvent (>= C3) dehydration (SFs > 10 000).