Impact on CO?/N? and CO?/CH? Separation Performance Using Cu-BTC with Supported Ionic Liquids-Based Mixed Matrix Membranes.

ABSTRACT: The efficient separation of gases has industrial, economic, and environmental importance. Here, we report the improvement in gas separation performance of a polyimide-based matrix (Matrimid^®5218) filled with a Cu-based metal organic framework [MOF, Cu?(BTC)?] with two different ionic liquids (ILs) confined within the pores. The chosen ILs are commonly used in gas solubilization, 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF?]) and 1-Ethyl-3-methylimidazolium trifluoromethanesulfonate ([EMIM][OTf]), and the incorporation of the [EMIM][BF?]@Cu-BTC and [EMIM][OTf]@Cu-BTC composites in Matrimid^®5218 proved to be an efficient strategy to improve the permeability and selectivity toward CO?/N? and CO?/CH? mixtures.

SUBMITTER: Monteiro B 

PROVIDER: S-EPMC6316195 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature