Hydrothermal synthesis of well-stable silver nanoparticles and their application for enzymeless hydrogen peroxide detection

被引：141

作者：

Lu, Wenbo ^{[1
]}

Liao, Fang ^{[1
]}

Luo, Yonglan ^{[1
]}

Chang, Guohui ^{[1
]}

Sun, Xuping ^{[1
]}

机构：

[1] China W Normal Univ, Sch Chem & Chem Ind, Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637002, Sichuan, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2011年 / 56卷 / 05期

关键词：

Hydrothermal synthesis; Silver nanoparticle; Enzymeless hydrogen peroxide detection; GOLD NANOPARTICLES; METAL PARTICLES; OPTICAL-FIBER; SENSOR; H2O2; BIOSENSOR;

D O I：

10.1016/j.electacta.2010.11.053

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We reported on a facile hydrothermal synthesis of well-stable silver nanopartiles (AgNPs) from an aqueous solution of AgNO3 and poly[(2-ethyldimethylammonioethyl methacrylate ethyl sulfate)-co-(1-vinylpyrrolidone)] (PQ11), a kind of cationic polyelectrolyte, at 100 degrees C without the extra introduction of other reducing agents and protective agents. Transmission electron microscopy (TEM) observation reveals that the AgNPs thus formed mainly consist of small nanoparticles about 5 nm in diameter. It is found that such dispersion can form stable AgNPs-embedded films on bare electrode surfaces and these nanoparticles exhibit remarkable catalytic performance for hydrogen peroxide (H2O2) detection. The sensor has a fast amperometric response time of less than 2 s. The linear range is estimated to be from 1 x 10(-4) M to 0.18 M (r= 0.998) and the detection limit is estimated to be 3.39 x 10(-5) Mat a signal-to-noise ratio of 3, respectively. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2295 / 2298

页数：4

共 37 条

[1]

Bönnemann H, 2001, EUR J INORG CHEM, P2455

[2] A selective, cell-permeable optical probe for hydrogen peroxide in living cells [J].