Facile generation and regulation of oxygen vacancies in BiOCl catalysts for effectively photocatalytic degradation of Rhodamine B
Introducing oxygen vacancies (OVs) in BiOCl catalyst has been regarded as an effective strategy in broadening the narrow range of light response and enhance separation efficiency of photo-induced carriers. However, the commonly-used methods for OVs generation are mostly realized under relatively har...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
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| Series: | Results in Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715625004588 |
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| Summary: | Introducing oxygen vacancies (OVs) in BiOCl catalyst has been regarded as an effective strategy in broadening the narrow range of light response and enhance separation efficiency of photo-induced carriers. However, the commonly-used methods for OVs generation are mostly realized under relatively harsh conditions. Herein, spherical BiOCl microparticles with abundant OVs assembled from nanosheet were synthesized via a mild one-step hydrothermal method. In addition, the concentration of OVs can be simply regulated via adjusting the mount of additives. The as-prepared BiOCl-3 samples presented the most favorable photocatalytic properties in decomposing Rhodamine B (RhB) under visible light via the improved separation efficiency of photo-induced carriers by sufficient OVs and more active sites due to large specific surface area for physical adsorption and photocatalytic decomposition. The degradation ratio of RhB reaches approximately 100 % within 48 min under BiOCl-3 catalysis, and the RhB degradation ratio still maintained a ratio of 90 % after four consecutive cycles. This work provides a beneficial reference for facile generation and regulation of OVs in photocatalysts with highly photocatalytic performance. |
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| ISSN: | 2211-7156 |