Pyridinium-based Task-specific Ionic Liquid with a Monothioether Group for Selective Extraction of Class b Metal Ions

被引：11

作者：

Chayama, Kenji ^{[1
]}

Sano, Yuki ^{[1
]}

Iwatsuki, Satoshi ^{[1
]}

机构：

[1] Konan Univ, Dept Chem, Kobe, Hyogo 6588501, Japan

来源：

ANALYTICAL SCIENCES | 2015年 / 31卷 / 11期

关键词：

Task-specific ionic liquid; extraction; thioether; class b metal ion; precious metals; green sustainable chemistry; AQUEOUS-SOLUTION; WATER;

D O I：

10.2116/analsci.31.1115

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A pyridinium-based task-specific ionic liquid (TSIL) with a monothioether group, [3-TPPy][NTf2], extracted typical class b metal ions, such as Ag(I), Cu(I), Pd(II), and Pt(II), in high selectivity. It was found that the composition ratio of the extracted Ag(I) and Cu(I) species depended on the TSIL concentration, and that TSIL extracted these metal ions through mono-S-coordinated complex formation at low TSIL concentrations. [3-TPPy] [NTf2] can be recycled in the extraction-recovery process, which is of a great advantage for practical use in environmentally benign separation methods.

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收藏

页码：1115 / 1117

页数：3

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