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Enhanced Photocatalytic Activity of Bi（24）O（31）Br（10）： Constructing Heterojunction with BiOI

ISSN号：1005-0302
期刊名称：《材料科学技术学报：英文版》
时间：0
分类：O643.36[理学—物理化学;理学—化学] TQ135.32[化学工程—无机化工]
作者机构：[1]Center of Materials Physics and Chemistry, Beihang University, Beijing 100191, China, [2]Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522, Australia
相关基金：The authors thank Prof. Huaizhe Xu and Dr. Hongyan Deng for their help and stimulating discussions on the first-principle calculation. This work was financially supported by the National Natural Science Foundation of China （Grant Nos. 51072012 and 51272015）.

作者： Xi Lou[1], Jun Shang[2], Liang Wang[1], Haifeng Feng[3], Weichang Hao[1,3], Tianmin Wang[1], Yi Du[3]

关键词：光催化性能, 氧化铋, 形貌, 透射电子显微镜, 可见光照射, X-射线衍射, 罗丹明B, 化学沉淀法, γ-Bi2O3, Visible light, Photocatalytic properties, Morphology

中文摘要：

The metastable γ-Bi2O3 photocatalysts with different morphologies were fabricated by means of a chemical precipitation method.The microstructure of as-prepared samples was characterized by X-ray diffraction,transmission electron microscopy and ultraviolet-visible diffusion reflectance spectroscopy.The photocatalytic performance of Bi2O3 powder was evaluated using rhodamine B as a model pollutant under visible light irradiation.The visible light photocatalytic activity of Bi2O3 with different morphologies is as follows,nanorod > nanorod/nanoflake > N doped TiO2 > irregular particle > agglomerated particle.The γ-Bi2O3 shows the best photocatalytic performance and it can effectively degrade 97%RhB within 60 min.

英文摘要：

The metastable γ-Bi2O3 photocatalysts with different morphologies were fabricated by means of a chemical precipitation method. The microstructure of as-prepared samples was characterized by X-ray diffraction, transmission electron microscopy and ultraviolet-visible diffusion reflectance spectroscopy. The photocatalytic performance of Bi2O3 powder was evaluated using rhodamine B as a model pollutant under visible light irradiation. The visible light photocatalytic activity of Bi2O3 with different morphologies is as follows, nanorod 〉 nanorod/nanoflake 〉 N doped TiO2 〉 irregular particle 〉 agglomerated particle. The γ-Bi2O3 shows the best photocatalytic performance and it can effectively degrade 97% RhB within 60 min.

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