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The visible light catalytic properties of carbon quantum dots/ZnO nanoflowers composites

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Abstract

Carbon quantum dots (C QDs)/ZnO nanoflowers composites were prepared via a simple technical route through which ZnO nanoflowers were prepared by electrospinning-hydrothermal synthesis and dispersed in C QDs solution, then dried at 80 °C. The results indicated that ZnO nanoflowers were well combined with C QDs. The visible light photocatalytic activity of C QDs/ZnO nanoflowers coposite was investigated by degradation of Rhodamine B under visible light irradiation, and it is demonstrated that the photocatalytic performance of this composites was significantly enhanced compared with that of pure ZnO nanoflowers. Furthermore, the unique up-converted photoluminescence behaviour of the carbon dots and the novel 3-D structure of the ZnO were considered as the main reasons of this enhancement.

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Acknowledgments

The authors gratefully acknowledge the support for this work from the National Science Foundation of China (Grant Nos. 61176005 and 61006001) and Engagement Program (Program No. 2014046) Funded by Xi’an University of Science and Technology.

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Authors and Affiliations

  1. College of Science, Xi’an University of Science and Technology, Xi’an, 710000, People’s Republic of China

    Xin Zhang, Zhengxin Yan & Yamin Wang

  2. Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou, 730000, People’s Republic of China

    Xin Zhang, Jiaqi Pan, Chengquan Zhu, Yingzhuo Sheng & Boxue Feng

  3. School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, People’s Republic of China

    Xin Zhang, Jiaqi Pan, Chengquan Zhu, Yingzhuo Sheng & Boxue Feng

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  1. Xin Zhang
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  2. Jiaqi Pan
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  3. Chengquan Zhu
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  4. Yingzhuo Sheng
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Correspondence to Jiaqi Pan.

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Zhang, X., Pan, J., Zhu, C. et al. The visible light catalytic properties of carbon quantum dots/ZnO nanoflowers composites. J Mater Sci: Mater Electron 26, 2861–2866 (2015). https://doi.org/10.1007/s10854-015-2769-x

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  • DOI: https://doi.org/10.1007/s10854-015-2769-x

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