doi:10.1016/j.seppur.2022.121693engQiu, B.Alberto, M.Mohsenpour, S.Foster, A. B.Ding, S.Guo, Z.Xu, S.Holmes, S. M.Budd, P. M.Fan, X.Gorgojo Alonso, P.Thin film nanocomposite membranes of PIM-1 and graphene oxide/ZIF-8 nanohybrids for organophilic pervaporationART-2022-129978In this work, thin film nanocomposite (TFN) membranes of super-glassy polymer PIM-1 containing zeolitic imidazolate framework-8 (ZIF-8)/graphene oxide (GO) composites (ZG) have been prepared by dip-coating onto water pre-impregnated polyvinylidene fluoride (PVDF) substrates. Higher flux and improved separation factors as compared to bare PIM-1 thin film composite (TFC) membranes have been achieved in organophilic pervaporation; for an aqueous feed solution with 5 wt% of butanol at 65 °C, a total permeate flux of 7.9 ± 0.69 kg m-2h-1 and a separation factor (ßBtOH/H2O) of 29.9 ± 1.99 have been obtained with a TFC membrane containing 0.5 wt% of ZG filler. The pervaporation separation index (PSI) of this membrane (228 kg m-2h-1) is amongst the highest values reported in the literature. This excellent performance is attributed to the formation of a defect-free PIM-1 active layer (<1 µm) and the hydrophobic nature of the ZG fillers. © 2022 The Authors2022http://zaguan.unizar.es/record/11872310.1016/j.seppur.2022.121693http://zaguan.unizar.es/record/118723oai:zaguan.unizar.es:118723info:eu-repo/grantAgreement/ES/MICINN/RYC2019-027060-ISeparation and Purification Technology 299 (2022), 121693 [12 pp]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess