118723 20240319081014.0 doi 10.1016/j.seppur.2022.121693 sideral 129978 ART-2022-129978 eng Qiu, B. Thin film nanocomposite membranes of PIM-1 and graphene oxide/ZIF-8 nanohybrids for organophilic pervaporation 2022 Access copy available to the general public Unrestricted In 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 Authors info:eu-repo/grantAgreement/ES/MICINN/RYC2019-027060-I info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 8.6 2022 ENGINEERING, CHEMICAL 12 / 141 = 0.085 2022 Q1 T1 1.339 2022 Filtration and Separation 2022 Q1 Analytical Chemistry 2022 Q1 12.7 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Alberto, M. Mohsenpour, S. Foster, A. B. Ding, S. Guo, Z. Xu, S. Holmes, S. M. Budd, P. M. Fan, X. Gorgojo Alonso, P. Universidad de Zaragoza (orcid)0000-0002-6905-714X 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 299 (2022), 121693 [12 pp] Sep. Purif. Technol. Separation and Purification Technology 1383-5866 13374377 http://zaguan.unizar.es/record/118723/files/texto_completo.pdf Versión publicada 2656694 http://zaguan.unizar.es/record/118723/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:118723 articulos driver 2024-03-18-15:24:34 ARTICLE