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Crystal-facet-controllable synthesis of Cu2O microcrystals, shape evolution and their comparative photocatalytic activity

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Abstract

Single crystal Cu2O materials with morphologies of cube, truncated cube, truncated octahedron, octahedron etc. have been synthesized by a facile glucose reduction method. Polyvinylpyrrolidone concentration dependent, crystal-facet-controllable growth mechanism of the synthesized Cu2O crystals has been proposed in the article. The photocatalytic test results show that the octahedral Cu2O crystals with dominant {111} planes have super photocatalytic activity than the cubic ones packaged by {100} surfaces, which could be explained by that the polar, highly active {111} facets with unsaturated “Cu” have more excellent activity on the methyl orange dye degradation. This article will contribute to promote the morphology construction and crystal-dependent catalytic properties of metal oxide semiconductor materials.

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Acknowledgments

This work was supported by National Natural Science Foundation of China (Grant Nos. 51205276 51205275 and 51205274), China Postdoctoral Science Foundation (Grant Nos. 20110491629 and 2013T60268), Shanxi Province Science Foundation for Youths (Grant Nos. 2012021021-5 and 2013021017-1), Shanxi Province Foundation for Returness (Grant No. 2013-036).

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Authors and Affiliations

  1. Micro-Nano System Research Center, College of Information Engineering, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China

    Anli Li, Pengwei Li, Jie Hu & Wendong Zhang

  2. Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China

    Pengwei Li, Jie Hu & Wendong Zhang

Authors
  1. Anli Li
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  2. Pengwei Li
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  3. Jie Hu
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  4. Wendong Zhang
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Correspondence to Pengwei Li.

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Li, A., Li, P., Hu, J. et al. Crystal-facet-controllable synthesis of Cu2O microcrystals, shape evolution and their comparative photocatalytic activity. J Mater Sci: Mater Electron 26, 5071–5077 (2015). https://doi.org/10.1007/s10854-015-3030-3

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  • DOI: https://doi.org/10.1007/s10854-015-3030-3

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