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Modification of polyetherimide membranes with ZIFs fillers for CO2 separation
dc.contributor.author | Vega, J. | |
dc.contributor.author | Andrio, Andreu | |
dc.contributor.author | Lemus, A. A. | |
dc.contributor.author | Díaz, J.A.I. | |
dc.contributor.author | Del Castillo, Luis F. | |
dc.contributor.author | Gavara, R. | |
dc.contributor.author | Compañ, Vicente | |
dc.date.accessioned | 2019-09-19T15:37:48Z | |
dc.date.available | 2019-09-19T15:37:48Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Vega, J.; Andrio, A.; Lemus, A.; Díaz, J.; Del Castillo, L.; Gavara, R.; Compañ Moreno, V. Modification of polyetherimide membranes with ZIFs fillers for CO2 separation. Separation and Purification Technology, 212, (2019). p. 474-482. https://doi.org/10.1016/j.seppur.2018.11.033 | ca_CA |
dc.identifier.issn | 1383-5866 | |
dc.identifier.issn | 1873-3794 | |
dc.identifier.uri | http://hdl.handle.net/10234/183829 | |
dc.description.abstract | Flat hybrid membranes composed of polyetherimide (PEI) as matrix and zeolitic imidazolate frameworks (ZIFs) as fillers at concentrations of 10 and 20 wt% were prepared. Apparent permeability coefficient and apparent diffusivity coefficient of gases (CO2 and N2) for these hybrid membranes (PZIFs) were determined by the “time-lag” method. The experimental conditions used were from 25 °C to 55 °C with pressures of 2, 3 and 5 bar. The PZIFs with fillers of ZIF-8 (PZ-Zn) and ZIF-67 (PZ-Co) showed apparent selectivities () of 39.6 and 27.5, respectively, higher than the of the reference membrane PEI, while the membrane with filler of ZIF-Mix (PZ-Zn/Co) showed the lowest selectivity of 10.3 in the membrane series (under conditions of 25 °C and 2 bar). It is proposed that the selectivity of the membrane series can be attributed to two critical factors: the particle size/distribution ratio in the polymer base and sorption of CO2 at local sites of the bimetallic mixture. On the other hand, gas permeation studies (O2, CO2 and CH4, and CO2/CH4 and CO2/C2H4 mixtures), were carried out in the series of PZIFs membranes. Permeability data were obtained by an isostatic method based on a permeation cell connected in series to a gas chromatograph where the rate of permeated gases was analyzed until a stationary state was reached. The complementary characterization techniques were: scanning electron microscopy, thermogravimetric analysis, and powder X-ray diffraction, which support the existence of the amorphous/crystalline phases of the PZIFs. | ca_CA |
dc.format.extent | 9 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.relation.isPartOf | Separation and Purification Technology, 2019, vol. 212, p. 474-482 | ca_CA |
dc.rights | © 2018 Elsevier B.V. All rights reserved | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | zeolitic imidazolate frameworks | ca_CA |
dc.subject | mixed matrix membranes | ca_CA |
dc.subject | PZIFs | ca_CA |
dc.subject | permeability | ca_CA |
dc.title | Modification of polyetherimide membranes with ZIFs fillers for CO2 separation | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1016/j.seppur.2018.11.033 | |
dc.relation.projectID | AcknowledgmentThis research has been supported by the ENE/2015-69203-R pro-ject, granted by the Ministerio de Economía y Competitividad(MINECO), Spain; Also authors are grateful to UNAM-DGAPA-PAPIITprojects IG-100185, and IG-114818.This study was partially supported by the CONACyT (Mexico) pro-jects 2013-05-231461 and CB-2014-01-235840. | ca_CA |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | https://www.sciencedirect.com/science/article/pii/S1383586618328983 | ca_CA |
dc.type.version | info:eu-repo/semantics/submittedVersion | ca_CA |
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