Salting-out effect on facilitated transport membranes for CO2 separation: From fluoride salt to polyoxometalates

Abstract

Salting-out effect on facilitated transport membranes for CO₂ separation has been revealed. The salts, especially fluoride salt and polyoxometalates, contained in the membrane may decrease the permeance of CO₂ to some extent but remarkably increase the selectivity of CO₂/N₂, as a result of synergistic interactions between facilitated transport and salting-out.