A novel electrochemical sensor of bisphenol A based on stacked graphene nanofibers/gold nanoparticles composite modified glassy carbon electrode

doi:10.1016/j.electacta.2013.03.064

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	A novel electrochemical sensor of bisphenol A based on stacked graphene nanofibers/gold nanoparticles composite modified glassy carbon electrode
	Niu, Xiuli 2; Yang, Wu 2; Wang, Guoying 1; Ren, Jie 2; Guo, Hao 2; Gao, Jinzhang 2
刊名	ELECTROCHIMICA ACTA
	2013-05-30
卷号	98 页码:167-175
关键词	Bisphenol A Stacked graphene nanofibers Gold nanoparticles Modified electrode Determination
ISSN号	0013-4686
DOI	10.1016/j.electacta.2013.03.064
英文摘要	In this paper, a novel and convenient electrochemical sensor based on stacked graphene nanofibers (SGNF) and gold nanoparticles (AuNPs) composite modified glassy carbon electrode (GCE) was developed for the determination of bisphenol A (BPA).The AuNPs/SGNF modified electrode showed an efficient electrocatalytic role for the oxidation of BPA, and the oxidation overpotentials of BPA were decreased significantly and the peak current increased greatly compared with bare GCE and other modified electrode. The transfer electron number (n) and the charge transfer coefficient (alpha) were calculated with the result as n = 4, alpha = 0.52 for BPA, which indicated the electrochemical oxidation of BPA on AuNPs/SGNF modified electrode was a four-electron and four-proton process. The effective surface areas of AuNPs/SGNF/GCE increased for about 1.7-fold larger than that of the bare GCE. In addition, the kinetic parameters of the modified electrode were calculated and the apparent heterogeneous electron transfer rate constant (k(s)) was 0.51 s(-1). Linear sweep voltammetry was applied as a sensitive analytical method for the determination of BPA and a good linear relationship between the peak current and BPA concentration was obtained in the range from 0.08 to 250 mu M with a detection limit of 3.5 x 10(-8) M. The modified electrode exhibited a high sensitivity, long-term stability and remarkable reproducible analytical performance and was successfully applied for the determination of BPA in baby bottles with satisfying results. (C) 2013 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation[20873101] ; Project of International Cooperation between China and Ukraine[043-05]
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000320092000023
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34690]
专题	石油化工学院
通讯作者	Yang, Wu
作者单位	1.Lanzhou Univ Technol, Coll Petr & Chem Engn, Lanzhou 730050, Peoples R China 2.Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Bioelectrochem & Environm Anal Gansu Prov, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Niu, Xiuli,Yang, Wu,Wang, Guoying,et al. A novel electrochemical sensor of bisphenol A based on stacked graphene nanofibers/gold nanoparticles composite modified glassy carbon electrode[J]. ELECTROCHIMICA ACTA,2013,98:167-175.
APA	Niu, Xiuli,Yang, Wu,Wang, Guoying,Ren, Jie,Guo, Hao,&Gao, Jinzhang.(2013).A novel electrochemical sensor of bisphenol A based on stacked graphene nanofibers/gold nanoparticles composite modified glassy carbon electrode.ELECTROCHIMICA ACTA,98,167-175.
MLA	Niu, Xiuli,et al."A novel electrochemical sensor of bisphenol A based on stacked graphene nanofibers/gold nanoparticles composite modified glassy carbon electrode".ELECTROCHIMICA ACTA 98(2013):167-175.