Graphene oxide-in-polymer nanofiltration membranes with enhanced permeability by interfacial polymerization

Membranes with high permeability and selectivity are desired for energy-efficient liquid separation. In the present work, a highly wrinkled surface and ultrafast water transport channels centered in a graphene oxide (GO)-in-polyamide membrane were prepared by in-situ embedding GO nanosheets into the separation layer of a nanofiltration (NF) membrane via an interfacial polymerization. The rough and hydrophilic surface enabled the attraction of...