A green and facile route for constructing flower-shaped TiO_2 nanocrystals assembled on graphene oxide sheets for enhanced photocatalytic activity

摘要

We have demonstrated an environmentally friendly in situ assembly method for the preparation of novel three-dimensional TiO_2/graphene oxide (TiO_2/GO) nanostructures with favorable flower-shaped architectures. Very little information on such a morphology of TiO_2/GO nanostructures is available in the literature. The as-synthesized sample was characterized by x-ray diffraction, scanning electron microscopy, transmission electron microscopy, N_2 adsorption-desorption measurements and Raman spectroscopy. Also the TiO_2/GO composites exhibited enhanced photocatalytic properties.