OICC Press International Journal of Nano Dimension 2228-5059 8 1 2024 02 28 Effect of nano Zinc Oxide on gas permeation through mixed matrix poly (Amide-6-b-Ethylene Oxide)-based membranes 10.22034/ijnd.2017.24374 EN Mahdi Sheikh Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran Morteza Asghari Department of chemical engineering, Science and Research branch, Islamic Azad University, Shiraz, Iran. Morteza Afsari Separation Processes Research Group (SPRG), Department of Engineering, University of Kashan, Kashan, Iran. Journal Article 2024 02 28 Poly (amide-6-b-ethylene oxide)/Zinc Oxide (PEBA/ZnO) mixed matrix membranes were fabricated using ethanol/water as solvent by solvent casting method. The concentration of ZnO in membrane was set to 0.1 wt.% and the synthesized membranes were characterized by AFM and FTIR. Effects of ZnO nanoparticle on CO2, CH4 and N2 permeabilities, and CO2/N2 and CO2/CH4 selectivities of the membranes were investigated at the ambient temperature and pressure range of 4–12 bar. The results revealed that the CO2 permeability of the nano-composite membrane increased 158 % with pressure, from 54.08 barrer (at 4 bar) to 139.59 barrer (at 12 bar). Furthermore, CO2 permeability for the nano-composite membrane was higher than neat polymeric membrane. The PEBA/ZnO nano-composite membranes thus provide a promising potential for CO2/N2 and CO2/CH4 separation.