Abstract
A novel photocatalyst, BiVO4-loaded fly ash cenospheres (BFACs), was prepared by the modified metalorganic decomposition (MOD) method. Its physicochemical properties were characterized by X-ray diffractometry (XRD), Raman spectroscopy, scanning electron microscopy with energy dispersive X-ray microanalyses (SEM-EDX) and UV-vis diffused reflectance spectroscopy (DRS). The photocatalytic activities of the as-prepared sample were evaluated by the photodegradation methyl orange (MO) dye and phenol in aqueous solution under visible-light irradiation. It was found that the photocatalytic activity of BFACs composite for the degradation of MO and phenol were higher than that of pure BiVO4. Moreover, much enhanced photocatalytic performance for phenol degradation was also realized with the assistance of H2O2. The BFACs photocatalysts were stable and maintained high photocatalytic efficiency of MO during repeated recycles. The BFACs photocatalyst is promising for practical applications in purification of dye-containing wastewater.
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