nano composite pebax® membranes: effect of zeolite x filler on co2 permeation

a pebax-nano zeolite x mixed matrix membrane was fabricated and operationally characterized using single gas (co2) permeation. x-ray diffraction (xrd) analysis was used to study the arrangement of polymer chains of mixed matrix membrane. the membranes were characterized by scanning electron microscopy (sem) to study cross-sectional morphology. the single gas permeability were carried out for neat pebax and pebax-nano zeolite x (10 wt. %) membranes. operating pressures varied from 6 to 14 bars. co2 permeability for the nano-composite membrane was higher than the neat polymer membrane and increased with pressure. adding 10 wt.% of nanozeolite x into the polymeric matrix caused co2 permeability to increase. both structurally and operationally characterizations revealed the defect-free structure of the nano composite membrane.