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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Adsorption Properties of Magnetic Resin Microbeads with Amine and Mercaptan as Chelating Groups
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Synthesis and Adsorption Properties of Magnetic Resin Microbeads with Amine and Mercaptan as Chelating Groups

机译：胺和硫醇为螯合基团的磁性微珠的合成及吸附性能

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摘要

DThree magnetic chelating resins containing amino and mercapto groups were prepared by the suspended condensation polymerization of 2-chloroethoxymethyl thiirane with diamines. The magnetic resins were microbeads whose diameter was in the range of 10 to 45 #mu#m. The structure of the resins was characterized by XPS, IR, and elemental analysis. Their adsorption properties of Hg(II), Au(III), Pd(II), Pt(IV), Ag(I), Cu(II), Zn(II), and Pb(II) were investigated. The expeirmental results show the magnetic resins have high affinity for Hg(II) and noble metal ions. In the competitive adsorptoin, the resins predominantly adsorbed Hg(II) or Pd(II) in the coexistence of Cu(II), Zn(II), and Mg(II). Desorption of Pd(II) loaded on the resins was studied by using 2M hydrochloric acid solution containing 1% thiourea as desorbent. A high desorption ratio (up to 96.5%) was observed, and repeated adsorption/desorption operations showed the probability of repeated use of the magnetic resins.
机译：通过2-氯乙氧基甲基硫杂环丁烷与二胺的悬浮缩聚反应制备了三种含氨基和巯基的磁性螯合树脂。磁性树脂是直径在10至45＃μm的范围内的微珠。通过XPS，IR和元素分析对树脂的结构进行了表征。研究了它们对Hg（II），Au（III），Pd（II），Pt（IV），Ag（I），Cu（II），Zn（II）和Pb（II）的吸附性能。实验结果表明，磁性树脂对Hg（II）和贵金属离子具有高亲和力。在竞争性吸附蛋白中，树脂主要以Cu（II），Zn（II）和Mg（II）共存的形式吸附Hg（II）或Pd（II）。通过使用含1％硫脲的2M盐酸溶液作为解吸剂，研究了负载在树脂上的Pd（II）的解吸。观察到高的解吸率（高达96.5％），并且重复的吸附/解吸操作显示出重复使用磁性树脂的可能性。

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