中文摘要：

Porous hollow microspheres of bismuth vanadate（BiVO4） were successfully synthesized with the assistances of ethylenediamine tetraacetic（EDTA） and sodium dodecylbenzene sulfonate（SDBS） via hydrothermal method.The as-prepared BiVO4 samples were characterized by X-ray diffraction（XRD）,field-emission scanning electron microscopy（FE-SEM） and UV-vis diffuse reflectance spectra（DRS）.It was found that the ratio of EDTA and SDBS had a significant impact on the crystalline structure,size and morphology of BiVO4 photocatalyst.The crystal phase could be adjusted by changing the mass ratio of EDTA and SDBS.The photocatalytic activities of different BiVO4 samples were investigated through the degradation of RhB in the presence of H2O2 under visible light irradiation.The results indicated that the photocatalytic performance of the BiVO4 microstructures was greatly influenced by the porous structure,morphology and band gap.The BiVO4 sample prepared with the EDTA and SDBS ratio of 2:1 and total amount of 1.5 g have shown superior photocatalytic performance for its unique morphology,good porous structure and low band gap energy.

英文摘要：

Porous hollow microspheres of bismuth vanadate（BiVO_4） were successfully synthesized with the assistances of ethylenediamine tetraacetic（EDTA） and sodium dodecylbenzene sulfonate（SDBS） via hydrothermal method.The as-prepared BiVO_4 samples were characterized by X-ray diffraction（XRD）,field-emission scanning electron microscopy（FE-SEM） and UV-vis diffuse reflectance spectra（DRS）.It was found that the ratio of EDTA and SDBS had a significant impact on the crystalline structure,size and morphology of BiVO_4 photocatalyst.The crystal phase could be adjusted by changing the mass ratio of EDTA and SDBS.The photocatalytic activities of different BiVO_4 samples were investigated through the degradation of RhB in the presence of H_2O_2 under visible light irradiation.The results indicated that the photocatalytic performance of the BiVO_4 microstructures was greatly influenced by the porous structure,morphology and band gap.The BiVO_4 sample prepared with the EDTA and SDBS ratio of 2：1 and total amount of 1.5 g have shown superior photocatalytic performance for its unique morphology,good porous structure and low band gap energy.