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Research Article

Growth mechanism and photocatalytic evaluation of flower-like ZnO microstructures prepared with SDBS assistance

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  • Received: 3 May 2020Revised: 15 June 2020Accepted: 7 July 2020Available online: 9 July 2020
  • Flower-like ZnO microstructures were successfully obtained by hydrothermal method employing ZnSO4/(NH4)2SO4 as raw material.The operating parameters including hydrothermal temperature, OH-/Zn2+ molar ratio, time and additive amount of dispersant on the phase structure and micromorphology of ZnO particles were investigated. The synthesis conditions of flower-like ZnO microstructures were hydrothermal temperature of 160ºC, OH-/Zn2+ molar ratio of 5:1, reaction time of 4 h, dispersant of 4 mL. Flower-like ZnO microstructures are comprised of hexagon shape ZnO rods arranged in the form of radiative way. The degradation experiments of Rhodamine B (RhB) with a degradation efficiency of 97.6% exposure for 4 h showed that flower-like ZnO microstructures exhibited an excellent photocatalytic capacity in sunshine. The growth mechanism of flower-like ZnO microstructures was schematically presented.
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Growth mechanism and photocatalytic evaluation of flower-like ZnO microstructures prepared with SDBS assistance

  • Corresponding author:

    Hong-mei Shao    E-mail: shaohm@sylu.edu.cn

  • 1. School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China
  • 2. School of Metallurgy, Northeastern University, Shenyang 110819, China

Abstract: Flower-like ZnO microstructures were successfully obtained by hydrothermal method employing ZnSO4/(NH4)2SO4 as raw material.The operating parameters including hydrothermal temperature, OH-/Zn2+ molar ratio, time and additive amount of dispersant on the phase structure and micromorphology of ZnO particles were investigated. The synthesis conditions of flower-like ZnO microstructures were hydrothermal temperature of 160ºC, OH-/Zn2+ molar ratio of 5:1, reaction time of 4 h, dispersant of 4 mL. Flower-like ZnO microstructures are comprised of hexagon shape ZnO rods arranged in the form of radiative way. The degradation experiments of Rhodamine B (RhB) with a degradation efficiency of 97.6% exposure for 4 h showed that flower-like ZnO microstructures exhibited an excellent photocatalytic capacity in sunshine. The growth mechanism of flower-like ZnO microstructures was schematically presented.

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