Microwave-radiated synthesis of gold nanoparticles/carbon nanotubes composites and its application to voltammetric detection of trace mercury(II)

被引：109

作者：

Xu, He ^{[1
]}

Zeng, Liping ^{[1
]}

Xing, Sujie ^{[1
]}

Shi, Guoyue ^{[1
]}

Xian, Yuezhong ^{[1
]}

Lin, Litong ^{[1
]}

机构：

[1] E China Normal Univ, Dept Chem, Shanghai 200062, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 12期

关键词：

Microwave-irradiated synthesis; Gold nanoparticles; Carbon nanotubes; Voltammetry; Mercury;

D O I：

10.1016/j.elecom.2008.09.030

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Gold nanoparticles/carbon nanotubes (Au-NPs/CNTs) composites were rapidly synthesized by microwave radiation, and firstly applied for the determination of trace mercury(II) by anodic stripping voltammetry (ASV). The structure and composition of the synthesized Au-NPs/CNTs nanocomposites were characterized by transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), UV-vis absorption spectroscopy and cyclic voltammetry. Au-NPs/CNTs nanocomposites modified glassy carbon electrode (Au-NPs/CNTs/GCE) exhibited excellent performance for Hg(II) analysis. A wide linear range (5 x 10-(10)-1.25 x 10(-6) mol/L) and good repeatability (relative standard deviation of 1.84%) were obtained for Hg(II) detection. The limit of detection was found to be 3 x 10(-10) mol/L (0.06 mu g/L) at 2 min accumulation, while the World Health Organization's guideline value of mercury for drinking water is 1 mu g/L, suggesting the proposed method may have practical utility. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1839 / 1843

页数：5

共 29 条

[1] Determination of mercury by anodic stripping voltammetry with a gold nanoparticle-modified glassy carbon electrode [J].

Abollino, Ornella ;

Giacomino, Agnese ;

Malandrino, Mery ;

Piscionieri, Giuseppina ;

Mentasti, Edoardo .

ELECTROANALYSIS, 2008, 20 (01) :75-83

[2] Determination of mercury(II) at trace levels by gas-diffusion flow injection analysis with amperometric detection [J].

Amini, N ;

Cardwell, TJ ;

Cattrall, RW ;

Kolev, S .

ANALYTICA CHIMICA ACTA, 2005, 539 (1-2) :203-207

[3] The expansion/contraction of gold microparticles during voltammetrically induced amalgamation leads to mechanical instability [J].

Barrosse-Antle, Laura E. ;

Xiao, Lei ;

Wildgoose, Gregory G. ;

Baron, Ronan ;

Salter, Chris J. ;

Crossley, Alison ;

Compton, Richard G. .

NEW JOURNAL OF CHEMISTRY, 2007, 31 (12) :2071-2075

[4]

Boxall DL, 2001, CHEM MATER, V13, P806, DOI [10.1021/cm000521l, 10.1021/cm0005211]

[5] Anodic stripping voltammetry of arsenic(III) using gold nanoparticle-modified electrodes [J].

Dai, X ;

Nekrassova, O ;

Hyde, ME ;

Compton, RG .

ANALYTICAL CHEMISTRY, 2004, 76 (19) :5924-5929

[6] Electroanalysis using macro-, micro-, and nanochemical architectures on electrode surfaces. Bulk surface modification of glassy carbon microspheres with gold nanoparticles and their electrical wiring using carbon nanotubes [J].

Dai, Xuan ;

Wildgoose, Gregory G. ;

Salter, Chris ;

Crossley, Alison ;

Compton, Richard G. .

ANALYTICAL CHEMISTRY, 2006, 78 (17) :6102-6108

[7]

GIACOMINO A, 2007, THESIS U TORINO ITAL

[8] Neurotoxic effects of mercury on auditory cortex networks growing on microelectrode arrays: a preliminary analysis [J].

Gopal, KV .

NEUROTOXICOLOGY AND TERATOLOGY, 2003, 25 (01) :69-76

[9] Reusable platinum nanoparticle modified boron doped diamond microelectrodes for oxidative determination of arsenite [J].

Hrapovic, Sabahudin ;

Liu, Yali ;

Luong, John H. T. .

ANALYTICAL CHEMISTRY, 2007, 79 (02) :500-507

[10] Modified carbon nanotubes: an effective way to selective attachment of gold nanoparticles [J].

Jiang, LQ ;

Gao, L .

CARBON, 2003, 41 (15) :2923-2929

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