Hydrothermal synthesis, characterization and magnetic properties of BaFe2O4 nanostructure as a photocatalytic oxidative desulfurization of dibenzothiophene

Abstract

Abstract In this work BaFe2O4 nanostructures have been produced hydrothermal method using PTSA (p-toluenesulfonic acid) as fuel. The as-produced nanostructures were characterized by techniques like X-ray powder diffraction (XRD), Fourier transform infrared spectra (FT-IR), Energy-dispersive X-ray spectrometry (EDS), Scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM). The photocatalytic oxidation of dibenzothiophene (DBT), benzothiophene (BT) and dodecanethiol (RSH) in model oil were studied at room temperature (30 °C) with catalyst. The system contained BaFe2O4, H2O2, and acetonitrile liquid, UV–Vis lamp which played vitally important roles in the photocatalytic oxidative desulfurization. Especially, the molar ratio of H2O2 and sulfur (O/S) was only 3:1, which corresponded to the stoichiometric reaction. The sulfur removal of DBT-containing model oil with BaFe2O4 could reach 96.6%. The system could be recycled seven times without a significant decrease in photocatalytic activity.