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Photocatalytic activities of hollow and hierarchical Bi3.15Nd0.85Ti3O12 microspheres synthesized through a hydrothermal process

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Abstract

Hollow and hierarchical Bi3.15Nd0.85Ti3O12 (BNdT) microspheres of 0.5–1.2 μm in diameter were synthesized through a hydrothermal process. Each hollow microsphere is constructed across by many single-crystalline BNdT nanoplates with in-plane dimension of ~400 nm. The BNdT nanoplates are of layered perovskites. The UV–visible absorption characteristics demonstrated that the band gap of the BNdT microspheres is 3.33 eV. The hierarchical microspheres exhibit significant photocatalytic activity. Up to 75% methyl orange was decolorized after UV irradiation for 210 min, whereas lower than 10% methyl orange decolorized using BNdT powders prepared from single crystals as catalyst. The photocatalytic decolorization of methyl orange solution is a pseudo-first-order reaction and its kinetics can be expressed as ln(C/C 0) = kt.

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Acknowledgments

This work was supported by the Science Foundation for Excellent Young Scientists of Shandong Province (JQ200818) and the Program for Science and Technology of Qingdao City (08-1-3-13-jch), China.

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Authors and Affiliations

  1. Faculty of Materials Science and Engineering, Hubei University, 430062, Wuhan, People’s Republic of China

    Zhizheng Wang, Yajun Qi & Shimin Wang

  2. Marine Chemical Research Institute, 266071, Qingdao, People’s Republic of China

    Zhizheng Wang

  3. Laboratory of Fiber Materials and Modern Textile, the Growing Base for State Key Laboratory, Qingdao University, 266071, Qingdao, People’s Republic of China

    Hongyan Qi & Chaojing Lu

Authors
  1. Zhizheng Wang
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  2. Yajun Qi
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  3. Hongyan Qi
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  4. Chaojing Lu
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  5. Shimin Wang
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Correspondence to Yajun Qi or Chaojing Lu.

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Wang, Z., Qi, Y., Qi, H. et al. Photocatalytic activities of hollow and hierarchical Bi3.15Nd0.85Ti3O12 microspheres synthesized through a hydrothermal process. J Mater Sci: Mater Electron 21, 523–528 (2010). https://doi.org/10.1007/s10854-009-9950-z

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  • DOI: https://doi.org/10.1007/s10854-009-9950-z

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