Polybenzimidazole (PBI)/zeolitic imidazolate frameworks (ZIF-8) mixed matrix membranes for pervaporation dehydration of alcohols

▸ We have synthesized nano-sized zeolitic imidazolate frameworks (ZIF-8) and prepared homogeneous PBI/ZIF-8 MMMs for pervaporation dehydration of alcohols. ▸ Water permeability of PBI/ZIF-8 MMMs is one order higher than the PBI membrane. ▸ Selectivity of PBI/ZIF-8 MMMs with loadings up to 33.7 wt% is comparable to PBI membrane. ▸ PBI/ZIF-8 MMMs show effectiveness in suppressing swelling on the polymeric matrix.