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首页> 外文期刊>International journal of nanomechanics science and technology >THE STRUCTURE OF NANOCOMPOSITES BASED ON MAGNETITE AND HUMIC ACIDS PRODUCED BY CHEMICAL COPRECIPITATION AND MECHANOCHEMICAL SYNTHESIS
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THE STRUCTURE OF NANOCOMPOSITES BASED ON MAGNETITE AND HUMIC ACIDS PRODUCED BY CHEMICAL COPRECIPITATION AND MECHANOCHEMICAL SYNTHESIS

机译：化学沉淀和机械化学合成的磁铁矿和腐殖酸基纳米复合材料的结构

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摘要

A comparative analysis of methods used for obtaining hybrid functional materials based on magnetite nanoparticles and humic acids by in situ chemical co-deposition or mechanochemical dispersion showed that the method of in situ chemical co-deposition is optimal for producing Fe_3O_4-HA nanocomposites with reproducible sizes and structure. The possibility of regulating the sizes and magnetic properties of magnetite nanoparticles by varying the Fe_3O_4 and HAs ratio in the composite is demonstrated. The mechanochemical synthesis method provided opposite results in terms of decrease and increase of particle sizes, which varied in a broad range from nanoscale to micrometer sizes depending on synthesis conditions, accompanied by their increased size distribution. X-ray phase and Moessbauer studies of the hybrid material samples produced by mechanochemical synthesis showed parameters not typical of the magnetite phase.
机译：通过原位化学共沉积或机械化学分散法获得基于磁铁矿纳米颗粒和腐殖酸的杂化功能材料的方法的比较分析表明，原位化学共沉积方法最适合生产具有可复制尺寸的Fe_3O_4-HA纳米复合材料和结构。证明了通过改变复合物中Fe_3O_4和HAs的比例来调节磁铁矿纳米粒子尺寸和磁性的可能性。机械化学合成方法在减小和增大颗粒尺寸方面提供相反的结果，取决于合成条件，其在从纳米级到微米级的宽范围内变化，并伴随其增大的尺寸分布。机械化学合成生产的杂化材料样品的X射线相和Moessbauer研究表明，这些参数不是磁铁矿相的典型特征。

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  • 作者

    A. A. Yurishcheva; G. I. Dzhardimalieva; E. J. Kasymova; S. I. Pomogailo; K. A. Kydralieva; S. P. Li;

  • 作者单位

    Moscow Aviation Institute (National Research University), 4 Volokolamskoe Shosse, Moscow A80, 125993, Russian Federation;

    Institute of Physical Chemistry Problems, Russian Academy of Sciences, Moscow Aviation Institute (National Research University), Moscow, Russian Federation;

    Institute of Chemistry and Chemical Technology, National Academy of Sciences, Kyrgyzstan;

    Institute of Physical Chemistry Problems, Russian Academy of Sciences, Moscow Aviation Institute (National Research University), Moscow, Russian Federation;

    Moscow Aviation Institute (National Research University), 4 Volokolamskoe Shosse, Moscow A80, 125993, Russian Federation,OJSC Institute of Applied Biochemistry and Machine Building (Biokhimmash), Moscow, Russian Federation;

    Kyrgyz Zh. Balasagyn National University, 547 Frunze Str., Bishkek, 720033, Kyrgyzstan;

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  • 正文语种 eng
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  • 关键词

    magnetite nanoparticles; humic acids; chemical coprecipitation; mechanochemical dispersion; structure;

    机译：磁铁矿纳米颗粒;腐殖酸;化学共沉淀机械化学分散结构体;

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