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首页> 外文期刊>RSC Advances >Heteroatom-doped mesoporous carbons as efficient adsorbents for removal of dimethoate and omethoate from water
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Heteroatom-doped mesoporous carbons as efficient adsorbents for removal of dimethoate and omethoate from water

机译：杂原子掺杂的介孔碳作为高效吸附剂，用于从水中除去二甲酯和Omethoate

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摘要

Extensive use of organophosphate pesticides (OPs) invokes development of efficient procedures for their removal from the environment. By introducing low levels (<1 at%) of B, N or P into the structure of mesoporous carbons, we have produced a series of materials with different surface chemical composition, textural properties and level of structural disorder. These adsorbents were applied for removal of dimethoate and its oxo-analogue omethoate from aqueous solutions under batch adsorption conditions and by filtration using modified nylon membrane filters. Adsorption capacities up to 164 mg g(-1) were measured, with OPs uptake typically above 80% for dimethoate concentration as high as 5 x 10(-3) mol dm(-3). After the adsorption, neurotoxic effects of OP-containing water samples were significantly reduced or completely removed. The level of structural disorder was identified as a key parameter for efficient removal of dimethoate and omethoate while in the filtration experiments surface area of adsorbents also played an important role. While the presented research appeals to new fundamental studies of OP-carbon surface interactions, it also indicates a possible strategy in designing new efficient adsorbents for OPs removal from water.
机译：广泛使用有机磷杀虫剂（OPS）调用其从环境中移除的有效手术的开发。通过将B，N或P <1％的％）引入介孔碳的结构，我们生产了一系列具有不同表面化学成分，纹理性质和结构障碍水平的材料。将这些吸附剂施用于除去批量吸附条件下的水溶液中的二甲酯及其氧代 - 类似物，并通过使用改性的尼龙膜过滤器过滤。测量吸附能量高达164mg（-1），通过高达5×10（-3）摩尔DM（-3）的二甲酯浓度，OPS吸收通常高于80％。吸附后，含OP的水样的神经毒性作用显着减少或完全除去。将结构性疾病的水平鉴定为有效除去二甲酯和Omethoate的关键参数，而在过滤实验中，吸附剂的表面积也起到了重要作用。虽然所提出的研究吸引了对OP-碳表面相互作用的新基本研究，但它还表明了设计新高效吸附剂的可能策略，用于从水中去除。

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  • 来源
    《RSC Advances》 |2016年第67期|共12页
  • 作者

    Lazarevic-Pasti Tamara D.; Pasti Igor A.; Jokic Bojan; Babic Biljana M.; Vasic Vesna M.;

  • 作者单位

    Univ Belgrade Vinca Inst Nucl Sci POB 522 Belgrade 11001 Serbia;

    Univ Belgrade Fac Phys Chem Studentski Trg 12-16 Belgrade 11158 Serbia;

    Univ Belgrade Fac Technol &

    Met Karnegijeva 4 Belgrade 11000 Serbia;

    Univ Belgrade Vinca Inst Nucl Sci POB 522 Belgrade 11001 Serbia;

    Univ Belgrade Vinca Inst Nucl Sci POB 522 Belgrade 11001 Serbia;

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  • 正文语种 eng
  • 中图分类 化学;
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