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

Hong-mei Shao; Xiao-yi Shen; Xue-tian Li; Yong Cui; Wei Zhang; Wen-di Xu; Zhong-cai Shao; Yu-chun Zhai

doi:10.1007/s12613-020-2138-5

Volume 28 Issue 4

Apr. 2021

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2021 > 28(4): 729-737

Hong-mei Shao, Xiao-yi Shen, Xue-tian Li, Yong Cui, Wei Zhang, Wen-di Xu, Zhong-cai Shao, and Yu-chun Zhai, Growth mechanism and photocatalytic evaluation of flower-like ZnO microstructures prepared with SDBS assistance, Int. J. Miner. Metall. Mater., 28(2021), No. 4, pp. 729-737. https://doi.org/10.1007/s12613-020-2138-5

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Hong-mei Shao, Xiao-yi Shen, Xue-tian Li, Yong Cui, Wei Zhang, Wen-di Xu, Zhong-cai Shao, and Yu-chun Zhai, Growth mechanism and photocatalytic evaluation of flower-like ZnO microstructures prepared with SDBS assistance, Int. J. Miner. Metall. Mater., 28(2021), No. 4, pp. 729-737. https://doi.org/10.1007/s12613-020-2138-5

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Research Article

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

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Corresponding author:
Hong-mei Shao E-mail: shaohm@sylu.edu.cn
Received: 3 May 2020; Revised: 15 June 2020; Accepted: 7 July 2020; Available online: 9 July 2020

Abstract

Abstract

Flower-like ZnO microstructures were successfully produced using a hydrothermal method employing ZnSO₄/(NH₄)₂SO₄ as a raw material. The effect of the operating parameters of the hydrothermal temperature, OH⁻/Zn²⁺ molar ratio, time, and amount of dispersant on the phase structure and micromorphology of the ZnO particles were investigated. The synthesis conditions of the flower-like ZnO microstructures were: hydrothermal temperature of 160°C, OH⁻/Zn²⁺ molar ratio of 5:1, reaction time of 4 h, and 4 mL of dispersant. The flower-like ZnO microstructures were comprised of hexagon-shaped ZnO rods arranged in a radiatively. Degradation experiments of Rhodamine B with the flower-like ZnO microstructures demonstrated a degradation efficiency of 97.6% after 4 h of exposure to sunshine, indicating excellent photocatalytic capacity. The growth mechanism of the flower-like ZnO microstructures was presented.
- flower-like ZnO microstructures;
- hydrothermal process;
- photocatalytic capacity;
- growth mechanism

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