One-step electrodeposition of graphene loaded nickel oxides nanoparticles for acetaminophen detection

被引：91

作者：

Liu, Gui-Ting ^{[1
]}

Chen, Hui-Fen ^{[1
]}

Lin, Guo-Ming ^{[1
]}

Ye, Ping-ping ^{[1
]}

Wang, Xiao-Ping ^{[1
]}

Jiao, Ying-Zhi ^{[1
]}

Guo, Xiao-Yu ^{[1
]}

Wen, Ying ^{[1
]}

Yang, Hai-Feng ^{[1
]}

机构：

[1] Shanghai Normal Univ, Shanghai Key Lab Rare Earth Funct Mat, Minist Educ, Dept Chem,Key Lab Resource Chem, Shanghai 200234, Peoples R China

来源：

BIOSENSORS & BIOELECTRONICS | 2014年 / 56卷

关键词：

Graphene; Nickel oxides; Acetaminophen; One-step electrodeposition; Electrocatalytic activity; ELECTROCHEMICAL SENSOR; SENSITIVE DETECTION; COMPOSITE; FILMS; RAMAN; GRAPHITE;

D O I：

10.1016/j.bios.2014.01.005

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

An electrochemical sensor of acetaminophen (AP) based on electrochemically reduced graphene (ERG) loaded nickel oxides (Ni2O3-NiO) nanoparticles coated onto glassy carbon electrode (ERG/Ni2O3-NiO/ GCE) was prepared by a one-step electrodeposition process. The as-prepared electrode was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy. The electrocatalytic properties of ERG/Ni2O3-NiO modified glassy carbon electrode toward the oxidation of acetaminophen were analyzed via cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The electrodes of Ni2O3-NiO/GCE, ERG/GCE, and Ni2O3-NiO deposited ERG/GCE were fabricated for the comparison and the catalytic mechanism understanding. The studies showed that the one-step prepared ERG/Ni2O3-NiO/GCE displayed the highest electro-catalytic activity, attributing to the synergetic effect derived from the unique composite structure and physical properties of nickel oxides nanoparticles and graphene. The low detection limit of 0.02 mu M (S/N=3) with the wide linear detection range from 0.04 mu M to 100 mu M (R=0.998) was obtained. The resulting sensor was successfully used to detect acetaminophen in commercial pharmaceutical tablets and urine samples. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：26 / 32

页数：7

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