Hot pressing of electrospun membrane composite and its influence on separation performance on thin film composite nanofiltration membrane

► The properties (pore size and flux) of ENM are affected by hot pressing. ► Interfacial polymerization was carried out on hot pressed and non-hot pressed ENMs. ► The treated membranes possessed high flux and improved smoothness. ► These membranes are expected to offer energy saving performance in liquid filtration.