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Boosting photocatalytic performances of lamellar BiVO4 by constructing S-scheme heterojunctions with AgBr for efficient charge transfer.
- Source :
- Nanotechnology; 5/21/2023, Vol. 34 Issue 21, p1-9, 9p
- Publication Year :
- 2023
-
Abstract
- Successful construction of heterojunction can improve the utilization efficiency of solar light by broadening the absorption range, facilitating charge-carrier separation, promoting carrier transportation and influencing surface-interface reaction. Herein, visible-light-driven AgBr was deposited on the surface of lamellar BiVO<subscript>4</subscript> which was prepared by a facile hydrothermal process to improve charge carrier separation, and subsequent photocatalytic effectiveness. The catalyst with an optimal AgBr/BiVO<subscript>4</subscript> ratio exhibited a superbly enhanced photocatalytic decolorization ability (about 6.85 times higher than that of pure BiVO<subscript>4</subscript>) and high stability after four cycles. The unique photocatalytic mechanism of S-scheme carrier migration was investigated on the bases of radical trapping tests and photo/electrochemical characterizations. Results showed that the enhanced migration strategy and intimately interfacial collaboration guaranteed the effective charge carriers separation/transfer, leading to magnificent photocatalytic performance as well as excellent stability. [ABSTRACT FROM AUTHOR]
- Subjects :
- CHARGE transfer
CHARGE carriers
HETEROJUNCTIONS
LIGHT absorption
PHOTOCATALYSTS
Subjects
Details
- Language :
- English
- ISSN :
- 09574484
- Volume :
- 34
- Issue :
- 21
- Database :
- Complementary Index
- Journal :
- Nanotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 162290342
- Full Text :
- https://doi.org/10.1088/1361-6528/acbb7c