Abstract
In this paper, we report a novel nanocomposite of graphene nanocluster decorated Nb2O5 nanofibers. With the structural modification, the photocatalytically active region of Nb2O5 has been significantly extended from the UV region to the UV-Vis region (from ∼380 nm to ∼800 nm in the adsorption edge); and hence, the visible light photocatalytic performance has been greatly improved. Detailed structural analysis revealed that the enhanced photocatalytic activity of the graphene nanocluster decorated Nb2O5 nanofibers could be mainly attributed to the modification of the bandgaps by the clusters and the unique orientation of graphene layers (nearly perpendicular to the Nb2O5/C interface, which is quite different from classical “core–shell” composites). We believe that the findings suggest a potential candidate for visible-light photocatalytic applications and would inspire further studies.
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