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Adsorption of aniline from aqueous solution using graphene oxide-modified attapulgite composites

机译：使用石墨烯改性的亚己酯复合材料从水溶液中吸附苯胺

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摘要

Adsorption is an efficient treatment method for aniline removal in water treatment. In this work, the composites of graphene oxide-modified attapulgite were prepared and used firstly to remove aniline from wastewater. The composites were characterized by Fourier transformed infrared, Brunauer-Emmett-Teller, scanning electron microscopy and X-ray diffraction analysis. The effects of initial concentration, time, temperature and pH value on adsorption of aniline on graphene oxide-modified attapulgite are investigated. pH and temperature are found to have a significant influence on the adsorption amount. The experimental results showed that graphene oxide-modified attapulgite possesses strong adsorption ability for aniline with hydrogen bond interaction. The saturated adsorption amount could reach up to 90 mg g(-1) at pH = 2-4. The Langmuir isotherm is found to describe well the equilibrium adsorption data. Finally, graphene oxide-modified attapulgite is also observed to possess excellent reusability.
机译：吸附是水处理中苯胺去除的有效处理方法。在这项工作中，制备石墨烯改性的亚己酯的复合材料，首先制备并使用从废水中除去苯胺。复合材料的特征在于傅里叶变换红外线，Brunauer-Emmett-exchar，扫描电子显微镜和X射线衍射分析。研究了研究初始浓度，时间，温度和pH值对石墨烯氧化物改性的亚己酸盐的吸附的影响。发现pH和温度对吸附量产生显着影响。实验结果表明，氧化石墨烯改性的亚己酸酯具有氢键相互作用的苯胺具有强烈的吸附能力。饱和吸附量可以在pH = 2-4处达到高达90mg（-1）。发现Langmuir等温线描述了良好的平衡吸附数据。最后，还观察到石墨烯氧化物改性的亚己酯以具有优异的可重用性。

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  • 来源
    《RSC Advances》 |2018年第41期|共8页
  • 作者

    Deng Qiulin; Chen Chong; Lei Qin; Liang Jianhao; Zhang Tinghong; Jiang Jinlong;

  • 作者单位

    Southwest Univ Sci &

    Technol Sch Mat Sci &

    Engn State Key Lab Environm Friendly Energy Mat 59 Qinglong Rd Mianyang 621010 Peoples R China;

    Southwest Univ Sci &

    Technol Sch Mat Sci &

    Engn State Key Lab Environm Friendly Energy Mat 59 Qinglong Rd Mianyang 621010 Peoples R China;

    Southwest Univ Sci &

    Technol Sch Mat Sci &

    Engn State Key Lab Environm Friendly Energy Mat 59 Qinglong Rd Mianyang 621010 Peoples R China;

    Southwest Univ Sci &

    Technol Sch Mat Sci &

    Engn State Key Lab Environm Friendly Energy Mat 59 Qinglong Rd Mianyang 621010 Peoples R China;

    Southwest Univ Sci &

    Technol Sch Mat Sci &

    Engn State Key Lab Environm Friendly Energy Mat 59 Qinglong Rd Mianyang 621010 Peoples R China;

    Huaiyin Inst Technol Jiangsu Prov Key Lab Palygorskite Sci &

    Appl Tech 1 Meicheng Rd Huaian 223003 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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