Study on the separation performance of the multi-channel reduced graphene oxide membranes

The multi-channel reduction graphene oxide membranes with separation function have been synthesized by a simple hydrothermal reduction method. The size, number, and type of the nanochannels can be controlled by the reduced temperature. The nanochannels are attributed to the inter-sheet two-dimention nanochannels and in-plane nanopores by analyzing the change of the morphologies and chemical functional groups, and defects of rGO membranes. The flux and retention rate of solution are investigated by filtering different size dye molecules.