Abstract

The possibility of synthesis of nanodispersed composites Fe₃O₄@M(II)-Fe layered double hydroxides (M = Mg, Ni) is shown by mechanical processing a mixture of solid salts M(II) (M = Mg, Ni), Fe(II) and Fe(III) with solid sodium hydroxide, followed by washing the reaction products with water. The formation of magnetite in the composite occurs due to the interaction of salts of ferrous and trivalent iron with sodium hydroxide, in turn, the formation of layered double hydroxides due to the interaction of salts of divalent metals (M = Mg, Ni) and ferric salts with sodium hydroxide. It was exhibited that the prepared nanodispersed composites can be used as sorbents for the deep purification of aqueous solutions from As(III).

中文翻译：

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磁铁矿@M（II）-Fe层状双氢氧化物（M = Mg，Ni）的纳米分散复合物的轻度机械化学合成

摘要

通过机械加工固体盐M（II）（M = Mg，Ni）的混合物，可以显示出纳米分散复合材料Fe ₃ O ₄ @M（II）-Fe层状双氢氧化物（M = Mg，Ni）的合成方法，用固体氢氧化钠制铁（II）和铁（III），然后用水洗涤反应产物。复合材料中磁铁矿的形成是由于亚铁和三价铁盐与氢氧化钠的相互作用，反过来，由于二价金属盐（M = Mg，Ni）和三价铁的相互作用，形成了层状双氢氧化物盐与氢氧化钠。结果表明，所制备的纳米分散复合材料可用作吸附剂，用于从As（III）深度纯化水溶液。