Citation: Boran Xu, Juan Li, Lu Liu, Yandong Li, Shaohui Guo, Yangqin Gao, Ning Li, Lei Ge. Pt/Bi₂₄O₃₁Cl₁₀ composite nanosheets with significantly enhanced photocatalytic activity under visible light irradiation[J]. Chinese Journal of Catalysis, ;2019, 40(5): 713-721. doi: 10.1016/S1872-2067(18)63156-0 shu

Pt/Bi₂₄O₃₁Cl₁₀ composite nanosheets with significantly enhanced photocatalytic activity under visible light irradiation

Boran Xu ^a,b, ,
Juan Li ^a ,
Lu Liu ^b ,
Yandong Li ^b ,
Shaohui Guo ^b ,
Yangqin Gao ^b ,
Ning Li ^b ,
Lei Ge ^a,b

a State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum Beijing, Beijing 102249;
b Department of Materials Science and Engineering, College of Science, China University of Petroleum Beijing, Beijing 102249

Received Date: 11 August 2018
Revised Date: 30 August 2018

Fund Project: This work was supported by the National Natural Science Foundation of China (51572295, 21273285 and 21003157), Beijing Nova Program (2008B76), and Science Foundation of China University of Petroleum Beijing (KYJJ2012-06-20 and 2462016YXBS05).

Efficient composite semiconductor photocatalysts are highly desirable for the visible-light-driven degradation of organic pollutants. In this study, Bi₂₄O₃₁Cl₁₀ photocatalyst was prepared via a hydrothermal method and modified with Pt nanoparticles (NPs) through a facile deposition procedure. The composite photocatalyst was characterized by X-ray diffraction, transmission electronic microscopy, X-ray photoelectron spectroscopy, UV-vis diffusion reflectance spectroscopy, photoluminescence spectroscopy, and electron spin resonance. The 1.0 wt% Pt/Bi₂₄O₃₁Cl₁₀ photocatalyst showed the highest activity for the degradation of methyl orange under visible light (source:300 W Xe lamp coupled with a UV-cutoff filter), and the photocatalytic degradation efficiency improved about 2.2 times compared to that of pure Bi₂₄O₃₁Cl₁₀. The composite photocatalyst could maintain most of its activity after four runs of the photocatalytic experimental cycle. This study could provide a novel insight for the modification of other desirable semiconductor materials to achieve high photocatalytic activities.
- Bismuth-based oxyhalide,
- Photocatalyst,
- Bi₂₄O₃₁Cl₁₀,
- Methyl orange degradation
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Pt/Bi₂₄O₃₁Cl₁₀ composite nanosheets with significantly enhanced photocatalytic activity under visible light irradiation