A cation-π interaction confined graphene oxide membrane for separation of light paraffins and olefins

Chem Commun (Camb). 2023 Apr 27;59(35):5257-5260. doi: 10.1039/d3cc00619k.

Abstract

A supported graphene oxide membrane is endowed with selective function for olefins by a cation intercalation method. The metal-cation fixed GO membrane exhibits a high propane to propylene ideal selectivity of 1817 for single gas and a separation factor of 7.1 for binary mixtures with fast gas permeance in the order of 10-7 mol m-2 s-1 Pa-1 and reliable permeation stability.