1. Construction of a double Z-scheme Bi2O3–CuBi2O4–CuO composite photocatalyst for the enhanced photocatalytic activity.
- Author
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Hou, Junwei, Xie, Yu, Sun, Yarong, Kuang, Yu, Jiao, Zhihao, and Wang, Qingyao
- Abstract
Herein, a ternary Bi 2 O 3 –CuO–CuBi 2 O 4 photocatalyst was synthesized by the solvothermal deposition via the adjustment of Cu/Bi concentration ratio. The Bi 2 O 3 –CuO (5%) with the 5% of Cu/Bi concentration ratio exhibited dramatically high solar/visible light-driven photocatalytic activity, and the photocatalytic rate was 2.69/2.06 and 2.39/1.75 folds of pure Bi 2 O 3 photocatalysts toward rhodamine B (RhB) and methylene blue (MB) photodegradation, which was ascribed to the high solar absorption and low interface resistance. In addition, the •O 2 − and •OH radicals were defected to be the active species for the dye degradation, and then the Z-scheme heterojunction scheme was proposed to explain the photocatalytic result. The prepared sample photoelectrode also displayed the attractive photoelectric conversion capacity. The investigation indeed confirms that the novel ternary Bi 2 O 3 –CuO–CuBi 2 O 4 photocatalysts exhibit wide application prospect in wastewater remediation. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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