Abstract
In the work, visible-light-driven hierarchical Bi3.84W0.16O6.24 photocatalysts have been synthesized by a facile hydrothermal strategy. The micro-structures and photocatalytic activities of Bi3.84W0.16O6.24 photocatalysts were finely tuned just by adjusting the pH values of reaction solutions with different alkalis. The as-prepared samples were physically characterized by X-ray powder diffraction, field-emission scanning electron microscopy, and ultraviolet–visible diffraction reflection spectroscopy. When evaluated by the photocatalytic degradation of methyl orange (MO) under the visible-light irradiation, Bi3.84W0.16O6.24 samples with distinct micro-structures showed different photocatalytic activities. Of Note, the hierarchical Bi3.84W0.16O6.24 sub-microspheres constructed by nanoflake building blocks demonstrated the highest photocatalytic activity for the degradation of MO under the visible-light irradiation.
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Acknowledgments
The authors gratefully acknowledge the financial support by the Natural Science Foundation of Anhui Province (KJ2013A051), Graduate Innovation Program of Anhui University of Technology (2013008), and Training programs for innovation and entrepreneurship of Anhui Province (AH201310360133; AH201310360129).
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Hou, L., Hua, H., Gan, L. et al. Hydrothermal synthesis of visible-light-driven hierarchical Bi3.84W0.16O6.24 photocatalysts toward efficient degradation of methyl orange. J Nanopart Res 17, 183 (2015). https://doi.org/10.1007/s11051-015-2994-5
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DOI: https://doi.org/10.1007/s11051-015-2994-5