Fabrication and Characterization of NiOx/Bi2WO6 with Enhanced Photocatalytic Activity under Visible Light Illumination

Chun Ma

doi:10.4028/www.scientific.net/AMR.690-693.429

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 690-693Fabrication and Characterization of NiOx/Bi2WO6...

Fabrication and Characterization of NiO_x/Bi₂WO₆ with Enhanced Photocatalytic Activity under Visible Light Illumination

Abstract:

The NiO_x/Bi₂WO₆ photocatalyst with p-n heterojunction structure was synthesized. And the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-visible diffuse reflectance spectroscopy (UV-vis DRS). It was found that the RhB degradation rate with NiOx/Bi2WO6 was 1.62 times as great as that with the Bi2WO6 under visible light (λ>400 nm) by the photocatalytic measurements. The enhanced photocatalytic performance of the NiOx/Bi2WO6 sample was attributed to the improved separation efficiency of photogenerated hole-electron pairs generated by the p-n heterojunction between Bi2WO6 and NiOx.