Abstract
The composite photocatalysts ZnO/BiVO4 (35 wt%) and ZnO/BiVO4 (35 wt%)/Co3O4 (10 wt%) (ZBC) were hydrothermal synthesized and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and UV–Vis diffusion reflectance spectra techniques. The sonophotocatalytic activities of these composites were investigated by degrading brilliant green dye. Approximately 99.1% brilliant green dye was degraded within 60 min of visible light illumination using ZBC as the photocatalyst, which is much higher than the efficiency reported early. The multi-element heterojunction structure and the ultrasound effectively improve the photodegradation performance.
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