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In this work,BiVO_4 powders were synthesized by a sol-gel method,and the BiVO_4 gels with different calcination temperature were investigated by X-ray diffraction(XRD).Absorption range and band gap energy,which are responsible for the observed photocatalyst behavior,were investigated by UV/vis diffuse reflectance spectroscopy(DRS) for pure and silver oxide loaded BiVO_4.Photocatalytic properties of the prepared samples were examined by studying the degradation of the methyl orange.When using NaClO_2 as an electron acceptor,the possible photocatalytic mechanism has been discussed by photocatalytic reactions.With the help of electron acceptor,the results show clearly that the BiVO_4 loaded silver oxide exhibited superior photocatalytic activity in simulated dye wastewater treatment.
In this work, BiVO_4 powders were synthesized by a sol-gel method, and the BiVO_4 gels with different calcination temperature were investigated by X-ray diffraction (XRD). Absorption range and band gap energy, which are responsible for the observed photocatalyst behavior, were investigated by UV / vis diffuse reflectance spectroscopy (DRS) for pure and silver oxide loaded BiVO_4.Photocatalytic properties of the prepared samples were examined by studying the degradation of the methyl orange. Using NaClO_2 as an electron acceptor, the possible photocatalytic mechanism has been discussed by photocatalytic reactions .With the help of electron acceptor, the results show clearly that the BiVO_4 loaded silver oxide supported superior photocatalytic activity in simulated dye wastewater treatment.