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Fabrication of Bi2MoO6/BiOI heterojunction photocatalysts for enhanced photodegradation of RhB

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Abstract

The composites were synthesized by the reaction of Bi(NO3)3·5H2O, KI, and MoS2 and were prepared with different molar ratios of Bi/Mo (1:5, 1:2, 1:1, and 4:1) by altering the amount of bismuth nitrate pentahydrate. The phase composition and chemical bonds of the composites were characterized via X-ray diffraction and FT-IR, and the morphologies of the samples were characterized via scanning electron microscopy. With the increase of lanthanum source, the lamellar structure of the sample surface became more and more obvious. The results showed that the phase composition of the composites with different ratios of Bi/Mo was different. When the Bi/Mo reached 4:1, the composite material was Bi2MoO6/BiOI. The heterojunction structure formed between Bi2MoO6 and BiOI effectively promotes the separation of photogenerated electrons and holes and improved the photocatalytic activity. Therefore, the effect of the composites on the degradation of RhB was better than pure BiOI under the irradiation of a 350-W xenon lamp.

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ACKNOWLEDGMENTS

This work was supported by the National Natural Science Foundation of China (21401062), the Natural Science Fund of Jiangsu Province (BK20161294), Scientific and Technological Program of Lianyungang (JC1603), the QingLan Project of Jiangsu Province, the Natural Science Fundation of Jiangsu Province Department of Education (15KJD150007, 17KJA430003), the A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, and the Public Science and graduate student research and innovation project of the Huaihai Institute of Technology (KYCX18-2604).

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Authors and Affiliations

  1. Department of Chemical Engineering, Huaihai Institute of Technology, Lianyungang, 222005, China

    Jie Wang, LiZhen Ren, DongEn Zhang, XiaoYun Hao, JunYan Gong, Xin Xiao, YouXiang Jiang & ZhiWei Tong

  2. Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, Huaihai Institute of Technology, Lianyungang, 222005, China

    DongEn Zhang

  3. School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China

    DongEn Zhang

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  1. Jie Wang
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  2. LiZhen Ren
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Correspondence to DongEn Zhang or ZhiWei Tong.

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Wang, J., Ren, L., Zhang, D. et al. Fabrication of Bi2MoO6/BiOI heterojunction photocatalysts for enhanced photodegradation of RhB. Journal of Materials Research 33, 3928–3935 (2018). https://doi.org/10.1557/jmr.2018.345

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  • DOI: https://doi.org/10.1557/jmr.2018.345

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