One pot synthesis of UiO-66@IL composite for fabrication of CO selective mixed matrix membranes.

In this study, a facile and extensible one pot approach was utilized to synthesize ionic liquid inside a porous metal organic framework (UiO-66). Different characterization techniques were used to confirm the successful synthesis of UiO-66@IL composite. The MMMs were characterized and tested for CO separation from CH or N at ambient and elevated temperatures. SEM images exhibited well dispersion of the filler particles with no notable defect even at high loadings. Single and mixed gas permeation results indicated significant performance (CO permeability: 143 Barrer and CO/CH, CO/N selectivity: 28.32, 61.11 respectively) by enhancing the permeability of CO by 74% and selectivity to 31% and 26% for CO/CH and CO/N compared with neat Pebax®1657 membrane.