Carbon nanostructures for separation, preconcentration and speciation of metal ions

被引：149
作者：
Pyrzynska, Krystyna [1 ]
机构：
[1] Warsaw Univ, Dept Chem, PL-02093 Warsaw, Poland
来源：
TRAC-TRENDS IN ANALYTICAL CHEMISTRY | 2010年 / 29卷 / 07期
关键词：
Carbon nanostructure; Carbon nanotube; Carbon encapsulation; Magnetic nanoparticle; Metal ion; Nanocomposite; Preconcentration; Solid-phase extraction; Separation; Speciation; SOLID-PHASE EXTRACTION; ATOMIC-ABSORPTION-SPECTROMETRY; AQUEOUS-SOLUTION; MICROCOLUMN PRECONCENTRATION; ENRICHMENT EFFICIENCY; NANOTUBE COMPOSITES; SORPTION BEHAVIOR; ACTIVATED CARBON; ADSORPTION; TRACE;
D O I：
10.1016/j.trac.2010.03.013
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Novel carbon-based nanomaterials with unique properties find increasing use in analytical science. This article presents an up-to-date overview of recent applications of carbon nanotubes (CNTs), metal oxide-CNT nanocomposites and carbon-encapsulated magnetic nanoparticles for enrichment and separation of metal ions, and speciation. The sorption mechanism appears to be mainly attributable to chemical interactions between metal ions and the functional groups on the surface. I address the effects of surface oxidation and chemical functionalization, sorption capacities and process parameters, and discuss the application of these new nanomaterials to metal speciation. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：718 / 727
页数：10
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