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    • 5. 发明申请
    • REUSABLE HEAVY METAL REMOVER AND FABRICATION METHOD THEREOF
    • 可重复使用的重金属去除器及其制造方法
    • US20110294660A1
    • 2011-12-01
    • US12896178
    • 2010-10-01
    • Hye Young KOOJun Kyung KIMWon San CHOIHa Jin LEE
    • Hye Young KOOJun Kyung KIMWon San CHOIHa Jin LEE
    • B01J20/26B01J20/06
    • B01J20/06B01J20/0229B01J20/0233B01J20/103B01J20/205B01J20/28009B01J20/3057B01J20/3204B01J20/3208B01J20/3236B01J20/324B01J20/3272B01J20/3289B01J20/3293B01J20/3441B01J20/345
    • A heavy metal remover of a core-shell structure comprises a core including carbon nanotubes (CNT) that can aggregate and scatter in a reversible manner, and a shell including iron oxide. A method for fabricating a heavy metal remover of a core-shell structure comprises (a) preparing a carbon nanotube (CNT) aqueous solution where acid-treated CNTs have dissolved, (b) mixing the CNT aqueous solution with an aqueous solution of polymer template particles, thereby forming a CNT layer on the surface of the template particles, (c) mixing the solution having undergone the step (b) with a polymer electrolyte having positive charges, thereby forming a polymer layer on an outer surface of the CNT layer, (d) adding FeSO4, Fe2(SO4)3 or a mixture thereof to the solution having undergone the step (c), and stirring the solution, thereby including iron oxide in the polymer layer, (e) separating particles from the solution having undergone the step (d), and (f) removing the template particles by heat-treating the particles having been separated in the step (e). The method for removing heavy metal ions is capable of removing heavy metal ions by adsorbing the heavy metal ions into the CNTs of the core, with using the heavy metal remover of a core-shell structure.
    • 核 - 壳结构的重金属去除剂包括可以以可逆方式聚集和分散的碳纳米管(CNT)的芯和包含氧化铁的壳。 制备核 - 壳结构重金属去除剂的方法包括:(a)制备溶解有酸​​处理的CNT的碳纳米管(CNT)水溶液,(b)将CNT水溶液与聚合物模板的水溶液混合 颗粒,从而在模板颗粒的表面上形成CNT层,(c)将经历步骤(b)的溶液与具有正电荷的聚合物电解质混合,从而在CNT层的外表面上形成聚合物层, (d)在步骤(c)的溶液中加入FeSO 4,Fe 2(SO 4)3或其混合物,并搅拌该溶液,从而在聚合物层中包含氧化铁,(e)从已经经历的溶液中分离出颗粒 步骤(d)和(f)通过在步骤(e)中热处理分离的颗粒来除去模板颗粒。 通过使用核 - 壳结构的重金属去除剂,去除重金属离子的方法能够通过将重金属离子吸附到芯的CNT中来除去重金属离子。