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Enhanced photocatalytic activity of Ba doped BiFeO3 by turning morphologies and band gap

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Abstract

The application of BiFeO3 (BFO) in the treatment of environmental water pollution is very important. In this paper, Ba-doped bismuth ferrite series nanomaterials were prepared by sol–gel method. The results of X-ray diffraction show the evolution of the crystal structure by doping of Ba, while it can be seen by scanning electron microscopy that the doping reduces the grain size gradually. The band gap gets narrow after doping with Ba, result in high efficiency for the degradation of methyl orange under visible light irradiation. Furthermore, it is found that the ferromagnetism increases with the increase of Ba doping. Therefore, the BFO-based photocatalyst can be obtained by Ba doping with good performance.

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Acknowledgements

We acknowledge the National Natural Science Foundation of China (51602161, U1732126, 51872145, 61874060), the Open Project of National Lab of Solid State Microstructures, Nanjing University (M32051, M30044), the Scientific Research Foundation of Nanjing University of Posts and Telecommunications (NY219115), the Scientific Research Foundation of Nanjing University of Posts and Telecommunications (NY219115), STITP of Nanjing University of Posts and Telecommunications (201910293085Y).

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Authors and Affiliations

  1. New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing, 210023, China

    Yaowen Zhang, Yonghang Yang, Junchen Shen, Qinxin Song, Xingfu Wang, Weiwei Mao, Yong Pu & Xing’ao Li

  2. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China

    Weiwei Mao & Xing’ao Li

  3. Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China

    Zhichen Dong & Xing’ao Li

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  1. Yaowen Zhang
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  2. Yonghang Yang
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  3. Zhichen Dong
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  4. Junchen Shen
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  5. Qinxin Song
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  6. Xingfu Wang
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  7. Weiwei Mao
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Correspondence to Weiwei Mao, Yong Pu or Xing’ao Li.

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Zhang, Y., Yang, Y., Dong, Z. et al. Enhanced photocatalytic activity of Ba doped BiFeO3 by turning morphologies and band gap. J Mater Sci: Mater Electron 31, 15007–15012 (2020). https://doi.org/10.1007/s10854-020-04064-5

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  • DOI: https://doi.org/10.1007/s10854-020-04064-5

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