Volume 37 Issue 4
Aug.  2022
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SONG Yuehong, LIU Mingqin, HUANG Zihao, XU Hui, DAI Weili. Study on Adsorption Properties of Cd2+ by Fe3O4 Composite Materials[J]. Development and Application of Materials, 2022, 37(4): 27-33.
Citation: SONG Yuehong, LIU Mingqin, HUANG Zihao, XU Hui, DAI Weili. Study on Adsorption Properties of Cd2+ by Fe3O4 Composite Materials[J]. Development and Application of Materials, 2022, 37(4): 27-33.
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Study on Adsorption Properties of Cd2+ by Fe3O4 Composite Materials

  • 1. Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, College of Chemical Engineering and Modern Materials, Shangluo University, Shangluo 726000, China;

  • 2. Shaanxi Engineering Research Center for Mineral Resources Clean & Efficient Conversion and New Materials, Shangluo 726000, China;

  • 3. Nanxian Inspection and Testing Center of Yiyang City in Hunan Province, Yiyang 413000, China

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  • Received Date: February 13, 2022
  • Available Online: September 12, 2022
    Graphical Abstract
    • Abstract
  • The Fe3O4 is prepared by coprecipitation under the alkaline conditions, and then the Fe3O4 composite materials (Fe3O4-SiO2-NH2) are synthesized with tetraethyl orthosilicate and diethylenetriamine as the main raw materials. FT-IR, VSM and SEM are employed to characterize their structures, and the adsorption performance of Cd2+ by Fe3O4-SiO2-NH2 composites are studied. The results showed that under the conditions of T=55℃, contact time of 60 min, an initial Cd2+ concentration of 100 mg·L-1 and an amount of Fe3O4-SiO2-NH2 composite of 0.1 g, the adsorbent capacity of the composite for Cd2+ is found to be 71.4 mg·g-1. The adsorption kinetic behavior of Fe3O4-SiO2-NH2 composites for Cd2+ is consistent with the quasi second-order kinetic and thermodynamics is suitable to be described by Langmuir isothermal adsorption model. The removal rate of Cd2+ is still above 70% after five times regeneration of Fe3O4-SiO2-NH2 composite materials.
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    • References (17)
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