One pot synthesis of UiO-66@IL composite for fabrication of CO2 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 2 separation from CH 4 or N 2 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 2 permeability: 143 Barrer and CO 2 /CH 4 , CO 2 /N 2 selectivity: 28.32, 61.11 respectively) by enhancing the permeability of CO 2 by 74% and selectivity to 31% and 26% for CO 2 /CH 4 and CO 2 /N 2 compared with neat Pebax®1657 membrane. [Display omitted] • Ship in bottle technique was used to synthesize UiO-66@IL composite. • XRD, SEM, and FTIR confirmed the successful synthesis of UiO-66@IL composite. • MMM were fabricated with UiO-66@IL composite and Pebax®1657. • Simultaneously high CO 2 permeability and CO 2 /CH 4 , CO 2 /N 2 selectivity were achieved. [ABSTRACT FROM AUTHOR]