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Enhanced ferroelectric and UV photocatalytic properties in a Bi4Ti3O12@ZnO core–shelled nanostructure

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Abstract

Composited Bi4Ti3O12@ZnO nanoparticles with a core of Bi4Ti3O12 (BIT) and a shell of ZnO have been synthesized by liquid chemical reaction method. Compared with pure BIT nanoparticles, the ferroelectricity in BIT@ZnO core–shell nanostructure was greatly enhanced. Moreover, the dielectric loss of BIT@ZnO is lower than that of BIT nanoparticles in a low frequency range. The band gap energy of BIT@ZnO core@shell nanostructure is larger than that of BIT, which formed as a type-II band alignment. Furthermore, the BIT@ZnO core–shell nanoparticles exhibit better UV photodegradation activity for organic contaminant. Such a BIT@ZnO core@shell nanostructure may have potential applications in microelectronics, photoelectronic, and photocatalytic of contamination.

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Acknowledgments

This work was supported by National Basic Research Program of China (No. 2012CB932702), Beijing Municipal Natural Science Foundation (No. 2122037), NCET, the NSFC (Nos. 11174031, 51371024, 51325101), PCSIRT, and Fundamental Research Funds for the Central Universities.

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Authors and Affiliations

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    X. B. Meng, J. Miao, Y. Zhao, S. Z. Wu, X. G. Xu & Y. Jiang

  2. State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China

    S. G. Wang

Authors
  1. X. B. Meng
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  2. J. Miao
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  3. Y. Zhao
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  4. S. Z. Wu
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  5. X. G. Xu
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  6. S. G. Wang
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  7. Y. Jiang
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Correspondence to J. Miao.

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Meng, X.B., Miao, J., Zhao, Y. et al. Enhanced ferroelectric and UV photocatalytic properties in a Bi4Ti3O12@ZnO core–shelled nanostructure. J Mater Sci: Mater Electron 25, 1423–1428 (2014). https://doi.org/10.1007/s10854-014-1745-1

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  • DOI: https://doi.org/10.1007/s10854-014-1745-1

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