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首页> 外文期刊>Materials Science and Engineering >Preparation and application of novel magnetically separable γ-Fe_2O_3/activated carbon sphere adsorbent
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Preparation and application of novel magnetically separable γ-Fe_2O_3/activated carbon sphere adsorbent

机译：新型磁可分离γ-Fe_2O_3/活性炭球吸附剂的制备与应用

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摘要

Magnetic γ-Fe_2O_3/activated carbon microspheres have been synthesized by an activation process of carbon microspheres containing iron oxides, which were prepared by hydrothermal method. The structure and morphology of the magnetic porous carbon microspheres were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), thermogravimetry and differential thermal analysis (TG-DTA) and N_2 adsorption-desorption technique. The results showed that the as-prepared activated carbon spheres were the composite of single-phase γ-Fe_2O_3 and activated carbon material, and the content of carbon was about 3.87%. Using methyl orange as model pollutant, the magnetic porous carbon microspheres showed good adsorption capacities of 44.65 mg/g. The isotherm evaluations revealed that the Langmuir model attained better fits to the experimental equilibrium data than the Freundlich model. These magnetic porous carbon microspheres could potentially be applied in separation processes.
机译：磁性γ-Fe_2O_3/活性炭微球通过水热法制备的含氧化铁的碳微球的活化过程合成。通过X射线衍射（XRD），扫描电子显微镜（SEM），振动样品磁强计（VSM），热重分析和差热分析（​​TG-DTA）以及N_2吸附-脱附表征了磁性多孔碳微球的结构和形貌。技术。结果表明，所制得的活性炭球为单相γ-Fe_2O_3与活性炭材料的复合物，碳含量约为3.87％。使用甲基橙作为模型污染物，磁性多孔碳微球显示出良好的吸附能力，为44.65 mg / g。等温线评估显示，Langmuir模型比Freundlich模型具有更好的拟合实验平衡数据的能力。这些磁性多孔碳微球可以潜在地应用于分离过程中。

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  • 来源
    《Materials Science and Engineering》 |2011年第11期|p.861-865|共5页
  • 作者

    Zhigang Jia; Kuankuan Peng; Yanhua Li; Rongsun Zhu;

  • 作者单位

    School of Chemistry and Chemical Engineering, Anhui University of technology. No. 59 Hudong Road, Ma'anshan 243002, Anhui Province, PR China;

    School of Chemistry and Chemical Engineering, Anhui University of technology. No. 59 Hudong Road, Ma'anshan 243002, Anhui Province, PR China;

    School of Chemistry and Chemical Engineering, Anhui University of technology. No. 59 Hudong Road, Ma'anshan 243002, Anhui Province, PR China;

    School of Chemistry and Chemical Engineering, Anhui University of technology. No. 59 Hudong Road, Ma'anshan 243002, Anhui Province, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    γ-Fe_2O_3; Carbon Materials; Microsphere; Electron microscopy;

    机译：γ-Fe_2O_3;碳材料;微球;电子显微镜;

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