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TiO2-graphene nanocomposite for electrochemical sensing of adenine and guanine
Fan, Yang1; Huang, Ke-Jing1; Niu, De-Jun1; Yang, Chun-Peng2; Jing, Qiang-Shan1
2011-04-30
发表期刊ELECTROCHIMICA ACTA
卷号56期号:12页码:4685-4690
摘要

TiO2-graphene nanocomposite was prepared by hydrolysis of titanium isopropoxide in colloidal suspension of graphene oxide and in situ hydrothermal treatment. It provides an efficient and facile approach to yield nanocomposite with TiO2 nanoparticles uniformly embedded on graphene substrate. The electrochemical behavior of adenine and guanine at the TiO2-graphene nanocomposite modified glassy carbon electrode was investigated. The results show that the incorporation of TiO2 nanoparticles with graphene significantly improved the electrocatalytic activity and voltammetric response towards these species comparing with that at the graphene film. The TiO2-graphene based electrochemical sensor exhibits wide linear range of 0.5-200 mu M with detection limit of 0.10 and 0.15 mu M for adenine and guanine detection, respectively. The excellent performance of this electrochemical sensor can be attributed to the high adsorptivity and conductivity of TiO2-graphene nanocomposite, which provides an efficient microenvironment for electrochemical reaction of these purine bases. (C) 2011 Elsevier Ltd. All rights reserved.

文章类型Article
关键词Graphene Tio2-graphene Nanocomposite Adenine Guanine Electrochemical Sensor
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.electacta.2011.02.114
关键词[WOS]COMPOSITE FILM ; ELECTROCATALYTIC OXIDATION ; FUNCTIONALIZED GRAPHENE ; BIOSENSING PROPERTIES ; NANOSTRUCTURED TIO2 ; SELECTIVE DETECTION ; MODIFIED ELECTRODE ; GRAPHITE OXIDE ; CARBON ; NANOPARTICLES
收录类别SCI
语种英语
WOS研究方向Electrochemistry
WOS类目Electrochemistry
WOS记录号WOS:000290701500039
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6629
专题公共实验室
作者单位1.Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式
GB/T 7714
Fan, Yang,Huang, Ke-Jing,Niu, De-Jun,et al. TiO2-graphene nanocomposite for electrochemical sensing of adenine and guanine[J]. ELECTROCHIMICA ACTA,2011,56(12):4685-4690.
APA Fan, Yang,Huang, Ke-Jing,Niu, De-Jun,Yang, Chun-Peng,&Jing, Qiang-Shan.(2011).TiO2-graphene nanocomposite for electrochemical sensing of adenine and guanine.ELECTROCHIMICA ACTA,56(12),4685-4690.
MLA Fan, Yang,et al."TiO2-graphene nanocomposite for electrochemical sensing of adenine and guanine".ELECTROCHIMICA ACTA 56.12(2011):4685-4690.
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