the effect of incorporation of zif-67 nanoparticles on the polysulfone membranes in gas separation

polysulfone (psf) membranes were developed and modified by incorporating zif-67 nanoparticles. the effect of various percentages of zif67 was investigated by scanning electron microscopy, fourier transform infrared, x-ray diffraction. the permeation properties and performance of pure gases (n₂, o₂, co₂) was also evaluated. the ideal selectivity performance of composite membranes compared with the pure psf membranes significantly increased in co₂/n₂ and o₂/n₂ selectivity at pressure 1bar. it may due to, good interaction between the filler and the polymer and change in the polymer structure.