Supported Imidazolium-Based Ionic Liquids on a Polysulfone Matrix for Enhanced CO Capture.

The present work demonstrates the potential for improved CO capture capabilities of ionic liquids (ILs) by supporting them on a polysulfone polymeric matrix. CO is one of the main gases responsible for the greenhouse effect and is a focus of The European Commission, which committed to diminishing its emission to 55% by 2023. Various ILs based on combinations of 1-butyl-3-methyl- imidazolium cations and different anions (BMI·X) were synthesized and supported on a polysulfone porous membrane.