Journal of Synthetic Crystals, Volume. 49, Issue 9, 1705(2020)
Fabrication of Ce-La@Fe3O4 Adsorbents and Its Property for Defluorination
Ce-La@Fe3O4 composite adsorbents were fabricated by hydrothermal method and it was used to remove fluoride from aqueous solution. SEM images show that Ce-La@Fe3O4 adsorbents are square particle with diameter of (1.22±0.35) μm, and a certain extent adhesion are observed after the adsorption fluoride. The pseudo-second-order has been found suitable for describing the kinetics process of the fluoride absorption on Ce-La@Fe3O4 adsorbents while the net rate can thus be sequentially controlled in a multi-stage condition. The fitness of adsorption data by Langmuir model is superior to Freundlich model.The fluoride adsorption capacity would increase obviously when the reactive temperature rises. Ce-La@Fe3O4 adsorbents are magnetic, and are easy to be recovered and reused by ordinary magnets after adsorption fluoride.
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ZHAO Jinyun, SU Liman, XU Jie, LIU Junshao, MU Jilin, HU Jiapeng, LIN Hao, FU Xingping, LIU Ruilai. Fabrication of Ce-La@Fe3O4 Adsorbents and Its Property for Defluorination[J]. Journal of Synthetic Crystals, 2020, 49(9): 1705
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Published Online: Nov. 11, 2020
The Author Email: Jiapeng HU (22402414@qq.com)
CSTR:32186.14.