Fe3O4@MgO纳米复合材料的制备及其对Pb2+的吸附性能

黄瑞霞, 陈大鹏, 徐洋, 乔学亮

黄瑞霞, 陈大鹏, 徐洋, 乔学亮. Fe3O4@MgO纳米复合材料的制备及其对Pb2+的吸附性能[J]. 材料开发与应用, 2017, 32(3): 59-66. DOI: 10.19515/j.cnki.1003-1545.2017.03.011
引用本文: 黄瑞霞, 陈大鹏, 徐洋, 乔学亮. Fe3O4@MgO纳米复合材料的制备及其对Pb2+的吸附性能[J]. 材料开发与应用, 2017, 32(3): 59-66. DOI: 10.19515/j.cnki.1003-1545.2017.03.011
HUANG Ruixia, CHEN Dapeng, XU Yang, QIAO Xueliang. Preparation of Fe3O4@MgO Nanocomposites and Their Adsorption Properties for Pb2+[J]. Development and Application of Materials, 2017, 32(3): 59-66. DOI: 10.19515/j.cnki.1003-1545.2017.03.011
Citation: HUANG Ruixia, CHEN Dapeng, XU Yang, QIAO Xueliang. Preparation of Fe3O4@MgO Nanocomposites and Their Adsorption Properties for Pb2+[J]. Development and Application of Materials, 2017, 32(3): 59-66. DOI: 10.19515/j.cnki.1003-1545.2017.03.011

Fe3O4@MgO纳米复合材料的制备及其对Pb2+的吸附性能

详细信息
  • 中图分类号: TB383,X703

Preparation of Fe3O4@MgO Nanocomposites and Their Adsorption Properties for Pb2+

  • 摘要: 采用两步化学沉淀法制备了Fe3O4@MgO纳米复合材料,研究了纳米复合材料对Pb2+的吸附性能。结果表明,所制备的复合材料具有较高的顺磁性和稳定性,其饱和磁化强度为58.07 emu/g,初始氧化增重温度为125℃,对Pb2+有较好的吸附能力,在50 min内可以达到吸附平衡,最大吸附量为711.5 mg/g,其吸附过程符合准二级动力学模型和Langmuir等温吸附模型。
    Abstract: Fe3O4@MgO nanocomposites were prepared by two-step chemical precipitation method. The adsorption properties of nanocomposites for Pb2+ were investigated. The results show that the prepared composites have super paramagnetism and high stability, and the saturation magnetization and the initial temperature of oxidation are 58.07emu/g and 125 ℃, respectively. The as-obtained composites have excellent adsorption performance for Pb2+ with the maximum adsorption capacity of 711.5 mg/g, and the adsorption equilibrium can be reached within 50 min. The adsorption process well followed the pseudo-second-order kinetic model and Langmuir isotherm model.
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出版历程
  • 收稿日期:  2017-02-24
  • 网络出版日期:  2024-03-17

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