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Recovery of strontium (Sr2+) from seawater using a hierarchically structured MnO2/C/Fe3O4 magnetic nanocomposite
Hydrometallurgy ( IF 4.7 ) Pub Date : 2020-01-01 , DOI: 10.1016/j.hydromet.2019.105224
Jungho Ryu , Jeongsik Hong , In-Su Park , Taegong Ryu , Hye-Jin Hong

Abstract The recovery of strontium ions (Sr2+) from seawater has attracted much attention as an approach to securing Sr resources to meet increasing industrial demand. In this study, we synthesized a magnetic MnO2 nanocomposite (MnO2/C/Fe3O4) using a simple redox reaction under ambient conditions and applied this nanocomposite to the extraction of Sr2+ from natural seawater. The synthesized nanocomposite exhibited a hierarchical structure of MnO2, carbon, and Fe3O4 with a saturation magnetization of 25 emu/g that enabled effective separation under an external magnetic force. Regardless of the initial Sr2+ concentration, the adsorption of Sr2+ onto MnO2/C/Fe3O4 proceeded rapidly (within

中文翻译:

使用分层结构的 MnO2/C/Fe3O4 磁性纳米复合材料从海水中回收锶 (Sr2+)

摘要 从海水中回收锶离子 (Sr2+) 作为一种确保 Sr 资源以满足日益增长的工业需求的方法引起了广泛关注。在这项研究中,我们在环境条件下使用简单的氧化还原反应合成了磁性 MnO2 纳米复合材料 (MnO2/C/Fe3O4),并将这种纳米复合材料应用于从天然海水中提取 Sr2+。合成的纳米复合材料表现出 MnO2、碳和 Fe3O4 的分层结构,饱和磁化强度为 25emu/g,能够在外部磁力下有效分离。无论初始 Sr2+ 浓度如何,Sr2+ 对 MnO2/C/Fe3O4 的吸附都进行得很快(在
更新日期:2020-01-01
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