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首页> 外文期刊>Journal of Hazardous Materials >Task-specific thioglycolate ionic liquids for heavy metal extraction: Synthesis, extraction efficacies and recycling properties
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Task-specific thioglycolate ionic liquids for heavy metal extraction: Synthesis, extraction efficacies and recycling properties

机译：用于重金属萃取的任务特定的巯基乙酸盐离子液体：合成，萃取效率和再循环特性

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摘要

Eight novel task-specific ionic liquids (TSIIs) based on the thioglycolate anion designed for heavy metal extraction have been prepared and characterized by H-1 and C-13 NMR, UV-Vis, infrared, ESI-MS, conductivity, viscosity, density and thermal properties. Evaluation of their time-resolved extraction abilities towards cadmium(II) and copper(II) in aqueous solutions have been investigated where distribution ratios up to 1200 were observed. For elucidation of the IL extraction mode, crystals were grown where CO.) was converted with an excess of S-butyl thioglycolate. It was found by X-ray diffraction analysis that cadmium is coordinated by five oxygen and one sulfur donor atoms provided by two thioglycolate molecules and one water molecule. Leaching behavior of the hydrophobic ionic liquids into aqueous systems was studied by TOC (total dissolved organic carbon) measurements. Additionally, the immobilization on polypropylene was elucidated and revealed slower metal extraction rates and Similar leaching behavior. Finally, recovery processes for cadmium and copper after extraction were performed and recyclability was successfully proven for both metals. (C) 2016 The Author(s). Published by Elsevier B.V.
机译：制备了八种基于硫代乙醇酸根阴离子的，专为重金属萃取设计的新型任务特定离子液体（TSII），并通过H-1和C-13 NMR，UV-Vis，红外，ESI-MS，电导率，粘度，密度进行了表征和热性能。研究了它们在时间上对水溶液中镉（II）和铜（II）的萃取能力的评估，其中观察到的分配比高达1200。为了阐明IL提取模式，使晶体生长，其中用过量的巯基乙酸S-丁酯转化CO。通过X射线衍射分析发现，镉由两个硫代乙醇酸酯分子和一个水分子提供的五个氧和一个硫供体原子配位。通过TOC（总溶解有机碳）测量研究了疏水性离子液体向水系统中的浸出行为。另外，阐明了在聚丙烯上的固定，并揭示了较慢的金属提取速率和类似的浸出行为。最后，进行了萃取后镉和铜的回收过程，并成功证明了这两种金属的可回收性。 （C）2016作者。由Elsevier B.V.发布

著录项

  • 来源
    《Journal of Hazardous Materials》 |2017年第ptab期|241-249|共9页
  • 作者

    Platzer Sonja; Kar Mega; Leyma Raphlin; Chib Sonia; Roller Alexander; Jirsa Franz; Krachler Regina; MacFarlane Douglas R.; Kandioller Wolfgang; Keppler Bernhard K.;

  • 作者单位

    Univ Vienna, Inst Inorgan Chem, Fac Chem, Waehringer Str 42, A-1090 Vienna, Austria;

    Monash Univ, Sch Chem, Clayton, Vic 3800, Australia;

    Univ Vienna, Inst Inorgan Chem, Fac Chem, Waehringer Str 42, A-1090 Vienna, Austria;

    Univ Vienna, Inst Inorgan Chem, Fac Chem, Waehringer Str 42, A-1090 Vienna, Austria;

    Univ Vienna, Inst Inorgan Chem, Fac Chem, Waehringer Str 42, A-1090 Vienna, Austria;

    Univ Vienna, Inst Inorgan Chem, Fac Chem, Waehringer Str 42, A-1090 Vienna, Austria|Univ Johannesburg, Dept Zool, POB 524,Auckland Pk, ZA-2006 Johannesburg, South Africa;

    Univ Vienna, Inst Inorgan Chem, Fac Chem, Waehringer Str 42, A-1090 Vienna, Austria;

    Monash Univ, Sch Chem, Clayton, Vic 3800, Australia;

    Univ Vienna, Inst Inorgan Chem, Fac Chem, Waehringer Str 42, A-1090 Vienna, Austria;

    Univ Vienna, Inst Inorgan Chem, Fac Chem, Waehringer Str 42, A-1090 Vienna, Austria;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Thioglycolic acid; Task-specific ionic liquids; Heavy metal extraction; Immobilization; Reusability;

    机译：巯基乙酸;特定任务的离子液体;重金属萃取;固定化;可重复使用性;

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