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Experimental Study of CO2 and CH4 Permeability Values Through PebaxⓇ-1074/Silica Mixed Matrix Membranes

  • Saba Azizi
  • Navid Azizi
  • Reza Homayoon
Original Paper


In this research, mixed matrix membranes (MMMs) composed of poly(ether-block-amide) (PebaxⓇ-1074) and silica (SiO2) were prepared. Silica nanoparticles were distributed uniformly in the PebaxⓇ matrix without significant agglomerations and defects at the loadings of 0.0, 2.5, 5.0, 7.5 and 10 wt.%, confirming by field emission scanning electron microscopy (FESEM). Attenuated total reflection-Fourier transfer infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD) and thermal gravimetric analysis (TGA) were also carried out to identify functional groups, crystalline structure and thermal stability of the prepared membranes, respectively. The incorporation of silica nanoparticles resulted in significant improvements in CO2 permeability and consequently ideal CO2/CH4 selectivity. At 10 wt.% loading of silica nanoparticles, the MMM exhibited the best separation performance with the CO2 permeability of 105.94 Barrer and CO2/CH4 selectivity of 26.09 which are significantly higher than the neat membrane properties.


Mixed matrix membrane PebaxⓇ-1074 Silica nanoparticles CO2/CH4 separation 


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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Faculty of Chemical EngineeringIran University of Science and Technology (IUST)NarmakIran
  2. 2.Department of Chemical EngineeringShiraz Branch, Islamic Azad UniversityShirazIran

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