Chapter 2: Graphene-based Membranes

Owing to their unique one-atom-thick structure, graphene and its derivatives (e.g., graphene oxide) have become emerging nano-building blocks for developing separation membranes. Extraordinary molecular separation properties for purifying water and gases have been demonstrated by graphene-based membranes, which has attracted a huge surge of interest during the last few years. Graphene and its derivatives can be processed into separation membranes with three types: porous graphene membranes, graphene laminate membranes and graphene-based hybrid membranes. This chapter will present the latest ground-breaking advances in both theoretical and experimental studies related to these graphene-based membranes, including their design, fabrication, characterization, as well as application for pressure filtration, pervaporation and gas separation.