Highly Permeable Graphene Oxide/Polyelectrolytes Hybrid Thin Films for Enhanced CO₂/N₂ Separation Performance.

ABSTRACT: Separation of CO₂ from other gasses offers environmental benefits since CO₂ gas is the main contributor to global warming. Recently, graphene oxide (GO) based gas separation membranes are of interest due to their selective barrier properties. However, maintaining selectivity without sacrificing permeance is still challenging. Herein, we described the preparation and characterization of nanoscale GO membranes for CO₂ separation with both high selectivity and permeance. The internal structure and thickness of the GO membranes were controlled by layer-by-layer (LbL) self-assembly. Polyelectrolyte layers are used as the supporting matrix and for facilitating CO₂ transport. Enhanced gas separation was achieved by adjusting pH of the GO solutions and b

SUBMITTER: Heo J 

PROVIDER: S-EPMC5428404 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature