Impact on CO2/N2 and CO2/CH4 Separation Performance Using Cu-BTC with Supported Ionic Liquids-Based Mixed Matrix Membranes

Membranes

MariaH. Casimiro¹  Bernardo Monteiro²  AnaR. Nabais³  CláudiaC. L. Pereira³  LuísaA. Neves³  RuteO. Francisco³  AnaP. S. Martins³ 

[1] Centro de Ciências e Tecnologias Nucleares (C²TN), Instituto Superior Técnico, Estrada Nacional 10, 2695-066 Bobadela, Portugal;Centro de Química Estrutural (CQE), Instituto Superior Técnico, Estrada Nacional 10, 2695-066 Bobadela, Portugal;LAQV-REQUIMTE, Departamento de Química, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal;

关键词: mixed matrix membranes;    metal–organic frameworks;    ionic liquids;    gas separation;    Cu3(BTC)2;    IL@Cu3(BTC)2;    IL@MOF;   

DOI  :  10.3390/membranes8040093

来源: DOAJ

【 摘 要 】

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, Cu3(BTC)2] 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][BF4]) and 1-Ethyl-3-methylimidazolium trifluoromethanesulfonate ([EMIM][OTf]), and the incorporation of the [EMIM][BF4]@Cu-BTC and [EMIM][OTf]@Cu-BTC composites in Matrimid®5218 proved to be an efficient strategy to improve the permeability and selectivity toward CO2/N2 and CO2/CH4 mixtures.

【 授权许可】

Unknown