Preparation of BiVO₄/SBA-15 catalyst and its performance in the photocatalytic oxidation desulfurization

The BiVO₄/SBA-15 catalyst was prepared by post-hydrothermal method and characterized by XRD, SEM-EDS and N₂ adsorption-desorption; its performance in the photocatalytic oxidation desulfurization was investigated in a homemade static desulfurization reactor. The results indicated that the BiVO₄/SBA-15 catalyst presents mesoporous pore structure of SBA-15 molecular sieve and BiVO₄ is evenly dispersed on the SBA-15 surface. The BiVO₄/SBA-15 catalyst exhibits excellent activity in the photocatalytic oxidation desulfurization; for the desulfurization of a simulated diesel fuel over the BiVO₄/SBA-15 catalyst with a BiVO₄ loading of 15%, hydrothermally treated for 18 h and calcined at 530℃ for 3 h, the desulfurization rate reaches 95.6%.