Efficient Selective Carbon Dioxide Separation via Task-Specific Ionic Liquids Incorporated in ZIF-8

Abstract

Owing to the rapid increase in anthropogenic emission of carbon dioxide (CO 2 ) in the atmosphere, which has resulted in a number of global climate challenges, a decrease in CO 2 emissions is urgently needed in the current scenario. This study focuses on the development and characterization of composites for carbon dioxide (CO 2 ) separation. The composites consist of two task-specific ionic liquids (TSILs), namely, tetramethylgunidinium imidazole [TMGHIM] and tetramethylgunidinium phenol [TMGHPhO], impregnated in ZIF-8. The performance of CO 2 separation, including sorption capacity and selectivity, was evaluated for pristine ZIF-8