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.
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Acknowledgements
This work was financially supported by the Funding of Shenyang Ligong University’s Research Support Program for High-level Talents (No. 1010147000802) and the National Natural Science Foundation of China (Nos. 52004165 and 51774070).
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Shao, Hm., Shen, Xy., Li, Xt. et al. Growth mechanism and photocatalytic evaluation of flower-like ZnO micro-structures prepared with SDBS assistance. Int J Miner Metall Mater 28, 729–737 (2021). https://doi.org/10.1007/s12613-020-2138-5
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DOI: https://doi.org/10.1007/s12613-020-2138-5