Unraveling the synergistic influences of graphene and CuO on the structural, photon and phonon properties of graphene:CuO nanocomposites

Abstract

By this work, we discussed about the influence of the graphene on the structural, optical and phononproperties of the CuO nanostructures. The observed variations in the morphology, crystallite size andband gap of the CuO nanostructures with respect to the loading amount of graphene were discussed. Theobserved broad optical absorption of the CuO nanostructures was explained with the help of theMiescatteringandGan'stheoretical approximations. The observation of the multiphonon activity relatedbands in the Fourier transform infrared spectroscopy (FTIR) and the Raman studies of the compositeswere discussed. The appearance of the surface enhanced Raman scattering (SERS) like enhancement inthe Raman bands of the graphene in the composites was discussed by considering the surface plasmonresonance (SPR) of CuO nanostructures. The comparative study of the prepared composites for thetreatment of dye effluent was discussed.