Polydimethylsiloxane/Magnesium Oxide Nanosheet Mixed Matrix Membrane for CO Separation Application.

Carbon dioxide (CO) concentration is now 50% higher than in the preindustrial period and efforts to reduce CO emission through carbon capture and utilization (CCU) are blooming. Membranes are one of the attractive alternatives for such application. In this study, a rubbery polymer polydimethylsiloxane (PDMS) membrane is incorporated with magnesium oxide (MgO) with a hierarchically two-dimensional (2D) nanosheet shape for CO separation.

Prediction of CO Permeance across ZIF-L@PDMS/PES Composite Membrane.

The current work predicted the permeance of CO across a ZIF-L@PDMS/PES composite membrane using two different models. The membrane was fabricated by dipping a PES hollow fiber membrane in a coating solution made using PDMS that contained ZIF-L. First, flat sheet ZIF-L@PDMS membranes were fabricated to verify the role of ZIF-L on the gas separation performance of the membrane.