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Synthesis of SnO_2-activated carbon fiber hybrid catalyst for the removal of methyl violet from water

机译：SnO_2活化碳纤维杂化催化剂的合成用于去除水中的甲基紫

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摘要

SnO_2/activated carbon fiber (ACF) hybrid catalyst was synthesized from kapok precursor via a two-step process involving pore-fabricating and self-assembly of SnO_2 nanoparticles. The morphology and phase structure of the obtained samples were characterized by X-ray diffraction, field emission scanning electron microscope, high resolution transmission electron microscopy and N_2 adsorption-desorption isotherm. These results demonstrated that the synthesized SnO_2/ACF retained the hollow-fiber structure of kapok fibers. SnO_2 nanoparticles dispersed uniformly over the ACF support. The obtained hybrid catalyst showed porous structure with high surface area (647-897 m~2/g) and large pore volume (0.36-0.56 cm~3 g~(-1)). In addition, the catalytic activities of the obtained samples for methyl violet degradation under microwave irradiation were also evaluated. It was found that the SnO_2/ACF catalyst exhibited high catalytic activity for methyl violet degradation due to the synergistic effect of microwave and SnO_2/ACF catalyst.
机译：由木棉前驱体通过两步工艺合成了SnO_2 /活性炭纤维（ACF）杂化催化剂，该过程涉及SnO_2纳米粒子的孔制备和自组装。通过X射线衍射，场发射扫描电子显微镜，高分辨率透射电子显微镜和N_2吸附-解吸等温线对所得样品的形貌和相结构进行表征。这些结果表明，合成的SnO_2 / ACF保留了木棉纤维的中空纤维结构。 SnO_2纳米颗粒均匀地分散在ACF载体上。所得杂化催化剂具有高表面积（647-897 m〜2 / g）和大孔容（0.36-0.56 cm〜3 g〜（-1））的多孔结构。另外，还评估了获得的样品在微波辐射下对甲基紫降解的催化活性。发现由于微波与SnO_2 / ACF催化剂的协同作用，SnO_2 / ACF催化剂对甲基紫降解表现出较高的催化活性。

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  • 来源
    《Materials Science and Engineering》 |2015年第4期|1-8|共8页
  • 作者

    Jia Li; Dickon H.L. Ng; Peng Song; Chao Kong; Yi Song;

  • 作者单位

    School of Material Science and Engineering, University of Jinan, Jinan 250022, China;

    Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, China;

    School of Material Science and Engineering, University of Jinan, Jinan 250022, China;

    School of Material Science and Engineering, University of Jinan, Jinan 250022, China;

    School of Material Science and Engineering, University of Jinan, Jinan 250022, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Activated carbon fiber; SnO_2; Microwave; Degradation; Methyl violet;

    机译：活性碳纤维;SnO_2;微波;降解;甲基紫;

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