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    • Keywords


      ZnO nanoflowers; luminescence; O defects; photocatalyst.

    • Abstract


      ZnO nanoflowers were prepared by the hydrothermal method and studied by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy and photoluminescence. ZnO nanoflowers with star-like morphology were of pure wurtzite phase. The edges of the petals were composed of assemblies of smaller nanocrystallites. Green and orange emissions in photoluminescence were attributed to O vacancies and O interstitials, respectively. Furthermore, ZnO nanoflowers demonstrated the effective photocatalytic activities, and O vacancies and O interstitials were considered to be the active sites of the ZnO photocatalyst.

    • Author Affiliations


      Jincheng Fan1 Tengfei Li1 Hang Heng2 3

      1. School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China
      2. Center for Analysis and Testing, Nanjing Normal University, Nanjing 210097, China
      3. Department of Physics, Nanjing Normal University, Nanjing 210097, China
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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