Wettability switchable metal-organic framework membranes for pervaporation of water/ethanol mixtures

The hydrophilic Ni2(l-asp)2bipy membrane is switched to hydrophobic Ni2(l-asp)2bipy@PDMS membrane via a vapor deposition of PDMS and the both two membranes are applied to the pervaporation process. The stable Ni2(l-asp)2bipy membrane exhibit a high flux of H2O. The pervaporation studies based on the two membranes provide insight into the effect of surface wettability on the bio-ethanol purification performance.80