期刊
CHEMICAL PHYSICS LETTERS
卷 775, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.cplett.2021.138660
关键词
Sonophotocatalysis; Visible light driven; High degradation rate; ZnO/BiVO4/Co3O4
资金
- National Natural Science Foundation of China [11704009]
- Beijing Top Young Talents Project from Beijing Municipal Education Commission [CITTCD201904012]
The composite photocatalysts ZnO/BiVO4 and ZnO/BiVO4/Co3O4 were synthesized through hydrothermal methods and showed highly efficient degradation of brilliant green dye under visible light irradiation, with ZBC degrading approximately 99.1% of the dye within 60 minutes, significantly higher than previous reported efficiency. This improvement in photocatalytic performance is attributed to the multi-element heterojunction structure and the synergistic effect of ultrasound on the degradation process.
Y 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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