Polyvinyl alcohol and graphene oxide blending surface coated alumina hollow fiber (AHF) membrane for pervaporation dehydration of epichlorohydrin(ECH)/ isopropanol(IPA)/water ternary feed mixture

•The GO-PVA-TEOS solution was coated on the surface of a nanoporous alumina hollow fiber membrane.•Pervaporation dehydration of the epichlorohydrin/isopropanol/water ternary mixture was conducted at various operating conditions using the AHF coated with GO-PVA-TEOS membranes.•GO blending with PVA-TEOS membrane has improved the flux and separation factor in ECH/IPA/water pervaporation dehydration.•The long-term pervaporation stability evaluation of the 1.0 wt% GO-incorporated PVA-TEOS coated AHF membrane, the separation efficiency remained constant with increasing flux.