Supported Ionic Liquid Membranes and Facilitated Ionic Liquid Membranes

Paul Scovazzo, Ann E. Visser, James H. Davis, Robin D. Rogers, Carl A. Koval, Daniel L DuBois, Richard D. Noble

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

Supported Liquid Membranes (SLMs) use porous supports impregnated with a solvent. In SLMs, solute molecules dissolve into the membrane at the feed/membrane interface. The dissolved species diffuse through the membrane and desorb at the opposite membrane surface. The addition of a third mobile chemical or carrier to the solvent that can reversibly bind to the dissolved species enhances the selectivity of the membrane (facilitated transport). Supported Ionic Liquid Membranes (SILMs) have an advantage over SLMs due to the negligible loss through vaporization of Room Temperature Ionic Liquids (RTILs) and the ability to selectively modify the properties of the membrane solvent. Our initial research focus was on the CO2 separation from N2 using RTILs with and without ionic and neutral doping compounds. Our chapter presents the proof-of-concept of SILMs, the basic principles of FILM development, and discusses future needs for continued development of SILMs and FILMs. Our SILM had a CO2 permeability of 4.6 × 10-11 mol/(cm2 kPa s) with a selectivity over air of 29; these values are competitive with existing membrane materials. The FILMs had a 1.8 improvement in CO2 permeability with a driving force of 4.6 kPa of CO2.

Original languageEnglish
Pages (from-to)69-87
Number of pages19
JournalACS Symposium Series
Volume818
Publication statusPublished - 2002

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Ionic Liquids
Liquid membranes
Ionic liquids
Membranes
Vaporization
Doping (additives)
Temperature
Molecules
Air

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Scovazzo, P., Visser, A. E., Davis, J. H., Rogers, R. D., Koval, C. A., DuBois, D. L., & Noble, R. D. (2002). Supported Ionic Liquid Membranes and Facilitated Ionic Liquid Membranes. ACS Symposium Series, 818, 69-87.

Supported Ionic Liquid Membranes and Facilitated Ionic Liquid Membranes. / Scovazzo, Paul; Visser, Ann E.; Davis, James H.; Rogers, Robin D.; Koval, Carl A.; DuBois, Daniel L; Noble, Richard D.

In: ACS Symposium Series, Vol. 818, 2002, p. 69-87.

Research output: Contribution to journalArticle

Scovazzo, P, Visser, AE, Davis, JH, Rogers, RD, Koval, CA, DuBois, DL & Noble, RD 2002, 'Supported Ionic Liquid Membranes and Facilitated Ionic Liquid Membranes', ACS Symposium Series, vol. 818, pp. 69-87.
Scovazzo P, Visser AE, Davis JH, Rogers RD, Koval CA, DuBois DL et al. Supported Ionic Liquid Membranes and Facilitated Ionic Liquid Membranes. ACS Symposium Series. 2002;818:69-87.
Scovazzo, Paul ; Visser, Ann E. ; Davis, James H. ; Rogers, Robin D. ; Koval, Carl A. ; DuBois, Daniel L ; Noble, Richard D. / Supported Ionic Liquid Membranes and Facilitated Ionic Liquid Membranes. In: ACS Symposium Series. 2002 ; Vol. 818. pp. 69-87.
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