Constructing CO₂-facilitated transport highway in supported ionic liquid membranes

Abstract

A Carbon dioxide-facilitated transport highway ( CO 2-FTH) on the microporous surface of a membrane matrix was designed using the amino carrier 3-aminopropyltriethoxysilane (APTES). Owing to the reversible reaction between CO 2 molecules and fixed-site carriers, this supported ionic liquid membrane was able to selectively transfer CO 2 more quickly. This concept may inspire means of fabricating a highly permeable and selective membrane to break through Robeson's upper bound.