64305 20190709135525.0 doi 10.1016/j.memsci.2016.12.041 sideral 97847 ART-2017-97847 eng Castarlenas, S. Gas separation with mixed matrix membranes obtained from MOF UiO-66-graphite oxide hybrids 2017 Access copy available to the general public Unrestricted UiO-66-GO hybrids were obtained by hydrothermal synthesis of MOF UiO-66 (a Zr terephthalate) on graphite oxide (GO). These hybrids with appropriate texture and presence of nanosized MOF particles (in the ca. 30–100 nm range) have been used as fillers to prepare mixed matrix membranes (MMMs) with two different polymers, polysulfone (PSF) and polyimide (PI), as the matrixes, with contents varying between 0 and 32 wt%. The MMMs were applied to the separation of H2/CH4 and CO2/CH4 mixtures at different temperatures (35, 60 and 90 °C). Besides finding a good filler-polymer interaction, in the particular case of the hybrid filler, the barrier effect of the GO and the microporosity of the MOF dominated the separation properties of the MMMs. In all cases (different MMMs and separation mixtures) the effect of the temperature was to increase the permeability with a simultaneous decrease in the corresponding selectivity. In terms of permselectivity, the best H2/CH4 separation results were obtained (at 35 °C) with a PI based MMM containing only UiO-66 as filler (H2 permeability of 73 Barrer and H2/CH4 selectivity of 151), while a hybrid UiO-66-GO filler produced the best CO2/CH4 performance (CO2/CH4 selectivity value of 51 at 21 Barrer of CO2), also using a PI polymer. info:eu-repo/grantAgreement/ES/DGA-CAIXA/GA-LC-019-2011 info:eu-repo/grantAgreement/ES/DGA/T05 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.578 2017 POLYMER SCIENCE 3 / 87 = 0.034 2017 Q1 T1 ENGINEERING, CHEMICAL 9 / 137 = 0.066 2017 Q1 T1 2.4 2017 Biochemistry 2017 Q1 Physical and Theoretical Chemistry 2017 Q1 Materials Science (miscellaneous) 2017 Q1 Filtration and Separation 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0002-4954-1188 Téllez, C. Universidad de Zaragoza (orcid)0000-0003-1512-4500 Coronas, J. Universidad de Zaragoza 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 526 (2017), 205-211 J. membr. sci. JOURNAL OF MEMBRANE SCIENCE 0376-7388 1545857 http://zaguan.unizar.es/record/64305/files/texto_completo.pdf Postprint 59782 http://zaguan.unizar.es/record/64305/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:64305 articulos driver 2019-07-09-11:59:12 ARTICLE