Fig. 1: Preparation and structures of the membranes.
From: Antifouling graphene oxide membranes for oil-water separation via hydrophobic chain engineering

a Schematic diagram of the fabrication of the F-hGO membranes. HFBA, PFHA, PFOA, and NFDA are heptafluorobutyric acid, perfluorohexanoic acid, pentadecafluorooctanoic acid, and nonadecafluorodecanoic acid, respectively. b FTIR spectra of the GO, hGO, and F-hGO membranes. c XPS spectra of the hGO and F-hGO membranes. d The calculated F to P ratio of the F-hGO membranes determined by the peak area on XPS spectra. Source data are provided as a Source Data file.