In-situ synthesis of reduced graphene oxide/gold nanoparticles modified electrode for speciation analysis of copper in seawater

doi:10.1016/j.talanta.2017.06.054

	In-situ synthesis of reduced graphene oxide/gold nanoparticles modified electrode for speciation analysis of copper in seawater
	Liu, Ming 1; Pan, Dawei2,3,4 ; Pan, Wen ; Zhu, Yun 2; Hu, Xueping 2; Han, Haitao1,2 ; Wang, Chenchen 2; Shen, Dazhong 1
发表期刊	TALANTA
ISSN	0039-9140
	2017-11-01
卷号	174 页码:500-506
关键词	In Situ Synthesis Reduced Graphene Oxide Gold Nanoparticles Copper Ions Seawater
研究领域	Chemistry, Analytical
DOI	10.1016/j.talanta.2017.06.054
产权排序	第2完成单位
作者部门	海岸带环境工程技术研究与发展中心
英文摘要	In this paper, reduced graphene oxide/gold nanoparticle/Nafion (rGO/AuNP/Nafion) modified electrode was fabricated through in-situ synthesis and used for determination of copper ions in strong salt electrolyte (0.5 M NaCl) by differential pulse anodic stripping voltammetry (DPASV). This in-situ synthesis procedure was based on the ion-exchange and electrochemical reduction. The use of rGO provided a larger electrode surface and the presence of more active sites, while electron transfer was accelerated by incorporating AuNPs. Nafion was utilized as a cation exchange polymer in which rGO and AuNPs could be tightly attached to the electrode surface. The physical and electrochemical characterizations of the as-prepared modified electrode were studied by transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and cyclic voltammetry. AuNPs with diameter of 5-10 nm on rGO decorated in the gold electrode surface were observed. Under the optimal conditions, the rGO/AuNP/Nafion electrode had a linear response to copper ions in the concentrations range from 20 nM to 1 mu M (R-2 = 0.998), with the lowest detectable concentration of 8 nM and the detection limit of 4 nM (S/N = 3). Additionally, this electrode was successfully applied to the speciation analysis of copper (free, dissolved and total) in seawater.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	HEAVY-METALS ; ELECTROCHEMICAL DETERMINATION ; ETHANOL FUEL ; IRON ; COAST ; WATER ; SEA ; NANOCOMPOSITES ; CONTAMINATION ; CHINA
研究领域[WOS]	Chemistry
WOS记录号	WOS:000407524900068
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/23429
专题	中国科学院海岸带环境过程与生态修复重点实验室
通讯作者	Pan, Dawei; Shen, Dazhong
作者单位	1.Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Functionalized Probes Chem, Key Lab Mol & Nano Probes,Minist Educ,Shandong Pr, Jinan 250014, Shandong, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Fuzhou Environm Monitoring Cent Stn, Fuzhou 350011, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Liu, Ming,Pan, Dawei,Pan, Wen,et al. In-situ synthesis of reduced graphene oxide/gold nanoparticles modified electrode for speciation analysis of copper in seawater[J]. TALANTA,2017,174:500-506.
APA	Liu, Ming.,Pan, Dawei.,Pan, Wen.,Zhu, Yun.,Hu, Xueping.,...&Shen, Dazhong.(2017).In-situ synthesis of reduced graphene oxide/gold nanoparticles modified electrode for speciation analysis of copper in seawater.TALANTA,174,500-506.
MLA	Liu, Ming,et al."In-situ synthesis of reduced graphene oxide/gold nanoparticles modified electrode for speciation analysis of copper in seawater".TALANTA 174(2017):500-506.