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Technologies 2016, 4(4), 32; doi:10.3390/technologies4040032

Interactions between the Ionic Liquid and the ZrO2 Support in Supported Ionic Liquid Membranes for CO2 Separation

1
Posgrado en Ciencias e Ingeniería de Materiales, Universidad Autónoma Metropolitana Azcapotzalco, Ciudad de México 02200, Mexico
2
Laboratório de Peneiras Moleculares, PPGQ, Instituto de Química, Universidade Federal do Rio Grande do Norte, Natal RN 59078-970, Brasil
3
Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana Azcapotzalco, Ciudad de México 02200, Mexico
4
Instituto Mexicano del Petróleo, Ciudad de México 07730, Mexico
*
Author to whom correspondence should be addressed.
Academic Editor: Gustavo A. Fimbres Weihs
Received: 16 June 2016 / Revised: 31 August 2016 / Accepted: 15 September 2016 / Published: 28 September 2016
(This article belongs to the Special Issue Carbon Capture and Storage (CCS) Technologies)
View Full-Text   |   Download PDF [3057 KB, uploaded 28 September 2016]   |  

Abstract

This work reports the interaction study of two supported ionic liquid membranes (SILMs) based on 1-butyl-3-methylimidazolium hexafluorophosphate ([C4mim][PF6]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim][BF4]), which were impregnated into porous zirconia supports with 20 nm average pore diameters. The interaction of ionic liquid-support observed from diffuse reflectance (DR), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy and energy dispersive spectroscopy (SEM/EDS) is reported. The IR spectrum in the 600 to 4000 cm−1 range showed a specific interaction of the ionic liquid with the support. The N2 and CO2 permeances in the SILMs with [C4mim][BF4] were 8.7 × 10−8 mol·s−1·m−2·Pa−1 and 9.6 × 10−7 mol·s−1·m−2·Pa−1, respectively. The separation factor through the ionic liquid in the membrane as a function of temperature showed that the SILMs studied here can be used for CO2 separation at low temperatures. View Full-Text
Keywords: CO2; ionic liquid; SILMs; FTIR; permeance; separation factor CO2; ionic liquid; SILMs; FTIR; permeance; separation factor
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Sánchez-Fuentes, C.E.; Pergher, S.B.; Gutiérrez-Arzaluz, M.; Mugica-Álvarez, V.; Terrés, E.; Torres-Rodríguez, M. Interactions between the Ionic Liquid and the ZrO2 Support in Supported Ionic Liquid Membranes for CO2 Separation. Technologies 2016, 4, 32.

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