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首页> 外文期刊>Journal of Applied Polymer Science >Walnut shell supported nanoscale Fe-0 for the removal of Cu(II) and Ni(II) ions from water
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Walnut shell supported nanoscale Fe-0 for the removal of Cu(II) and Ni(II) ions from water

机译：核桃壳支撑的纳米级Fe-0，用于从水中去除Cu（II）和Ni（II）离子

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The walnut shell supported nanoscale zero-valent iron (walnut-nZVI) was prepared from sodium borohydride, iron(II) chloride tetrahydrate, and walnut shell by liquid phase chemical reduction and characterized by FTIR, TEM, and XRD. The composites were tested as adsorbent for the removal of Cu(II) or Ni(II) ions. The equilibrium data were analyzed by the Langmuir, Freundlich, Dubinin-Radushkevich, which revealed that Langmuir isotherm was more suitable for describing Cu(II) and Ni(II) ions adsorption than the other two isotherm models. The results indicated that the maximum adsorption capacity was higher than some other modified biomass waste adsorbents under the proposed conditions, were 458.7, 327.9 mgg(-1) for Cu(II) or Ni(II). The adsorption kinetics data indicated that the adsorption fitted well with the pseudo-second-order kinetic model. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43304.
机译：以硼氢化钠，四水合氯化铁（II）和核桃壳为原料，通过液相化学还原法制备了核桃壳负载型纳米零价铁（walnut-nZVI），并通过FTIR，TEM和XRD表征。测试了复合材料作为吸附剂的去除铜（II）或镍（II）离子的能力。通过Langmuir，Freundlich，Dubinin-Radushkevich分析了平衡数据，结果表明，Langmuir等温线比其他两个等温线模型更适合描述Cu（II）和Ni（II）离子的吸附。结果表明，在建议的条件下，最大吸附量高于其他改性生物质废物吸附剂，对Cu（II）或Ni（II）分别为458.7、327.9 mgg（-1）。吸附动力学数据表明该吸附与拟二级动力学模型吻合良好。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43304。

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