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- Title
Novel hydrostable Z‐scheme Ag/CsPbBr<sub>3</sub>/Bi<sub>2</sub>WO<sub>6</sub> photocatalyst for effective degradation of Rhodamine B in aqueous solution.
- Authors
Xue, Jia‐Rong; Xue, Rong‐Chao; Chen, Pei‐Yao; Wang, Yong; Yu, Li‐Ping
- Abstract
In this study, a hydrostable Z‐scheme Ag/CsPbBr3/Bi2WO6 photocatalyst was designed and fabricated for the degradation of Rhodamine B (RhB). The structural instability of CsPbX3 perovskites in water is one of the main obstacles that restrict their practical application in photocatalytic wastewater treatment. The photocatalyst was prepared in three steps: passivation of CsPbBr3 nanocrystals (NCs) with 3‐mercaptopropionic acid (MPA), construction of a heterojunction between MPA‐passivated CsPbBr3 NCs and Bi2WO6 ultrathin nanosheets, and doping Ag nanoparticles as charge mediators in the heterojunction. The as‐obtained 5%Ag/20%CsPbBr3/Bi2WO6 exhibits good stability and excellent photocatalytic activity. The degradation rate is 93.9% in 120 min, which is 4.41 times than that of Bi2WO6.
- Subjects
RHODAMINE B; AQUEOUS solutions; WASTEWATER treatment; PEROVSKITE; PHOTOCATALYSTS; HETEROJUNCTIONS; NANOCRYSTALS
- Publication
Journal of the Chinese Chemical Society, 2023, Vol 70, Issue 7, p1481
- ISSN
0009-4536
- Publication type
Article
- DOI
10.1002/jccs.202300025