Highly Permeable Sulfonated Graphene-Based Composite Membranes for Electrochemically Enhanced Nanofiltration.

ABSTRACT: A sulfophenyl-functionalized reduced graphene oxide (SrGO) membrane is prepared. The SrGO membranes have a high charge density in water and could provide many atomically smooth nanochannels, because of their strong ionized-SO₃H groups and low oxygen content. Therefore, the SrGO membranes have an excellent performance in terms of high permeance and high rejection ability. The permeance of SrGO membranes could be up to 118.2 L m^-2 h^-1 bar^-1, which is 7.6 times higher than that of GO membrane (15.5 L m^-2 h^-1 bar^-1). Benefiting from their good electrical conductivity, the SrGO membranes could also function as an electrode and demonstrate a significantly increased rejection toward negatively charged molecules and posit

SUBMITTER: Wang J 

PROVIDER: S-EPMC9370331 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature