Macroscopic and Spectroscopic Investigations of the Adsorption of Nitroaromatic Compounds on Graphene Oxide, Reduced Graphene Oxide, and Graphene Nanosheets

摘要: The surface properties and adsorption mechanisms of graphene materials are important for potential environmental applications. m-dinitrobenzene, nitrobenzene, p-nitrotoluene onto oxide (GO), reduced (RGO), (G) nanosheets was investigated using IR spectroscopy to probe the molecular interactions with nitroaromatic compounds (NACs). hydrophilic GO displayed weakest capability. RGO G significantly increased due recovery hydrophobic π-conjugation carbon atoms as active sites. nanosheets, which had more defect sites than did or resulted in highest NACs 10–50 times greater reported nanotubes. Superior dominated by various interaction modes including π–π electron donor–acceptor between π-electron-deficient phenyls π-electron-rich matrix graphe...