钒酸铋负载氧化银增强光催化性能(英文)

摘要

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.