Enhanced photocatalytic properties of molybdenum-doped BiVO4 prepared by sol–gel method

摘要

Bismuth vanadate(BiVO_4) has been investigated intensively and extensively due to its potential applications in the photocatalytic treatment of organiccontaining wastewater.In this study,Mo-BiVO_4 samples were synthesized by a facile sol-gel process.These samples were characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM),and ultravioletvisible(UV-Vis) diffuse reflectance spectroscopy.It is found that the phase structure of Mo-BiVO_4 photocatalyst is monoclinic scheelite.The photocatalytic activities of the obtained BiVO_4 samples were investigated by means of the decolorization efficiency of methyl orange(MO).The BiVO_4 and Mo-BiVO_4 photocatalysts show the response on the visible light.The doped BiVO_4 photocatalysts show higher decolorization efficiency than that of bare BiVO_4.