Fig. 2: Characterization of GO nanosheet and GOM.
From: Ion sieving in graphene oxide membrane enables efficient actinides/lanthanides separation
a AFM image of GO nanosheet, inset is the height profile across the white line. b Cross-sectional SEM image of the GOM on the support membrane. c Cross-sectional SEM image of the GOM. d Digital photo of the as-synthesized GOM. e XPS spectra of GOM. f XRD patterns of the dry GOM and the wet GOM after immersing in 3.0 mol/L HNO3.
