Coral-like ZnO/BiOBr Z-scheme heterojunction with excellent visible-light photocatalytic activity
Applied Physics A: Materials Science and Processing, ISSN: 1432-0630, Vol: 128, Issue: 10
2022
- 3Citations
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Article Description
The flower-like ZnO self-assembled by nanorods was synthesized by a chemical precipitation method. BiOBr was then covered on the three-dimensional ZnO by hydrothermal method to form coral-like ZnO/BiOBr heterojunctions with high specific surface area. The ZnO/BiOBr heterojunction was investigated by XRD, XPS, FT-IR, FE-SEM, TEM and DRS. The results show that the ZnO/BiOBr heterojunction exhibits significantly enhanced visible-light absorption and carrier transfer capability. It has excellent photocatalytic degradation ability in degradation of Rhodamine B (RhB), tetracycline hydrochloride (TC) and KCrO. After irradiated for 40 min, 45 min and 100 min, 96.7% RhB, 87.3% TC and 49.8% KCrO were degraded, which were 9.3, 1.7 and 41.5 times, respectively, that of the pure ZnO. The photocatalytic mechanism is also proposed.
Bibliographic Details
Springer Science and Business Media LLC
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