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Ethylenediamine-Functionalized Reduced Graphene Oxide for Enhanced Methylene Blue Removal

机译:乙二胺官能化还原氧化石墨烯用于增强亚甲基蓝的去除

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摘要

Ethylenediamine-functionalized reduced graphene oxide (GO) was synthesized by reacting chlorine-functionalized reduced GO and ethylenediamine. Chlorine atoms in reduced GO are susceptible to substitution by ethylenediamine, thereby causing their elimination. The product exhibits improved efficiency in methylene blue (MB) removal. Adsorption kinetics of the reaction fit a pseudo-second order model. Adsorption isotherms of MB on the product could be well described by the Langmuir model; physisorption may dominate the adsorption process. Batch experiments show an adsorption capacity of 143.6 mg/g, which is superior to those of reduced GO (77.2 mg/g) and activated carbon (AC, 46.5 mg/g).
机译:通过使氯官能化的还原型GO与乙二胺反应,合成了乙二胺官能化的还原氧化石墨烯(GO)。还原的GO中的氯原子易于被乙二胺取代,从而使其被消除。该产品在亚甲蓝(MB)去除方面表现出更高的效率。该反应的吸附动力学符合伪二级模型。 Langmuir模型可以很好地描述MB在产物上的吸附等温线。物理吸附可能主导吸附过程。分批实验表明,其吸附量为143.6 mg / g,优于还原GO(77.2 mg / g)和活性炭(AC,46.5 mg / g)的吸附量。

著录项

  • 来源
    《Environmental Engineering Science》 |2017年第6期|394-400|共7页
  • 作者单位

    Xinxiang Univ, Inst Energy & Fuel, Xinxiang 453003, Henan, Peoples R China;

    Xinxiang Univ, Inst Energy & Fuel, Xinxiang 453003, Henan, Peoples R China;

    Xinxiang Univ, Inst Energy & Fuel, Xinxiang 453003, Henan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    adsorption; graphene; methylene blue; modification;

    机译:吸附;石墨烯;亚甲基蓝;改性;
  • 入库时间 2022-08-17 13:28:32

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