In-situ synthesis of reduced graphene oxide/gold nanoparticles modified electrode for speciation analysis of copper in seawater
Liu, Ming1; Pan, Dawei2,3,4; Pan, Wen; Zhu, Yun2; Hu, Xueping2; Han, Haitao2; Wang, Chenchen2; Shen, Dazhong1; Pan, Dawei(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China); Shen, Dazhong(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)
2017-11-01
发表期刊TALANTA
ISSN0039-9140
卷号174页码:500-506
产权排序第2完成单位
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.
关键词In Situ Synthesis Reduced Graphene Oxide Gold Nanoparticles Copper Ions Seawater
DOI10.1016/j.talanta.2017.06.054
项目资助者National Natural Science Foundation of China(21575080, 41276093) ; Youth Innovation Promotion Association(2011170) ; Chinese Academy of Sciences(YZ201558)
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收录类别SCI
关键词[WOS]HEAVY-METALS ; ELECTROCHEMICAL DETERMINATION ; ETHANOL FUEL ; IRON ; COAST ; WATER ; SEA ; NANOCOMPOSITES ; CONTAMINATION ; CHINA
文章类型Article
语种英语
WOS研究方向Chemistry
WOS记录号WOS:000407524900068
引用统计
被引频次:1[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
专题中科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; Pan, Dawei(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China); Shen, Dazhong(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)
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
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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.
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