Gas separation enhancement via modification of PDMS membrane

Asymmetric polydimethylsiloxane (PDMS)/polysulfone (PSF) membranes were developed and modified by incorporating ZIF-8 nanoparticles. The effect of various percentages of ZIF8 was investigated by scanning electron microscopy, attenuated total reflectance fourier transform infrared, X-ray diffraction. The permeation properties and performance of pure gases (N2, O2, CO2) was also evaluated. More loading of nanoparticles resulted in an increase in the gas permeance, CO2/N2 and O2/N2 ideal selectivity at first, then slight decrement was observed. The best results for permeability and selectivity were obtained at 1% and 2%wt of nanoparticles

کلیدواژه ها:

Gas separation ، PDMS membrane ، ZIF-8 nanoparticles