Zinc-substituted ZIF-67 nanocrystals and polycrystalline membranes for propylene/propane separation

Chem Commun (Camb). 2016 Oct 18;52(85):12578-12581. doi: 10.1039/c6cc06457d.

Abstract

Continuous ZIF-67 polycrystalline membranes with effective propylene/propane separation performances were successfully fabricated through the incorporation of zinc ions into the ZIF-67 framework. The separation factor increases from 1.4 for the pure ZIF-67 membrane to 50.5 for the 90% zinc-substituted ZIF-67 membrane.