Abstract
In this work, the synthesis and physiochemical characterization of titanium oxide nanoparticle−graphene oxide (TiO2−GO) and titanium oxide nanoparticle−reduced graphene oxide (TiO2−RGO) composites was undertaken. TiO2−GO materials were prepared via the hydrolysis of TiF4 at 60 °C for 24 h in the presence of an aqueous dispersion of graphene oxide (GO). The reaction proceeded to yield an insoluble material that is composed of TiO2 and GO. Composites were characterized by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), Raman spectroscopy, N2 adsorption−desorption, and thermal gravimetric analysis/differential thermal analysis (TGA/DTA). This approach yielded highly faceted anatase nanocrystals with petal-like morphologies on and embedded between the graphene sheets. At higher GO concentrations with no stirring of the reaction media, a long-range ordered assembly for TiO2−GO sheets was observed due to self-assembly. GO−TiO2 compo...
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