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A Facile Electrochemical Sensor Based on PyTS-CNTs for Simultaneous Determination of Cadmium and Lead Ions
Jiang, RY (Jiang, Ruyuan)[ 1 ]; Liu, NT (Liu, Niantao)[ 1 ]; Gao, SS (Gao, Sanshuang)[ 2 ]; Mamat, X (Mamat, Xamxikamar)[ 2 ]; Su, YH (Su, Yuhong)[ 1 ]; Wagberg, T (Wagberg, Thomas)[ 3 ]; Li, YT (Li, Yongtao)[ 2 ]; Hu, X (Hu, Xun)[ 4 ]; Hu, GZ (Hu, Guangzhi)[ 2 ]
2018
Source PublicationSENSORS
ISSN1424-8220
Volume18Issue:5Pages:1-13
Abstract

A simple and easy method was implemented for the contemporary detection of cadmium (Cd2+) and lead (Pb2+) ions using 1,3,6,8-pyrenetetrasulfonic acid sodium salt-functionalized carbon nanotubes nanocomposites (PyTS-CNTs). The morphology and composition of the obtained PyTS-CNTs were characterized using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and X-ray photoelectron spectroscopy (XPS). The experimental results confirmed that the fabricated PyTS-CNTs exhibited good selectivity and sensitivity for metal ion-sensing owing to the insertion of sulfonic acid groups. For Cd2+ and Pb2+, some of the electrochemical sensing parameters were evaluated by varying data such as the PyTS-CNT quantity loaded on the pyrolytic graphite electrode (PGE), pH of the acetate buffer, deposition time, and deposition potential. These parameters were optimized with differential pulse anodic sweeping voltammetry (DPASV). Under the optimal condition, the stripping peak current of the PyTS-CNTs/Nafion/PGE varies linearly with the heavy metal ion concentration, ranging from 1.0 mu g L-1 to 90 mu g L-1 for Cd2+ and from 1.0 mu g L-1 to 110 mu g L-1 for Pb2+. The limits of detection were estimated to be approximately 0.8 mu g L-1 for Cd2+ and 0.02 mu g L-1 for Pb2+. The proposed PyTS CNTs/Nafion/PGE can be used as a rapid, simple, and controllable electrochemical sensor for the determination of toxic Cd2+ and Pb2+.

KeywordCarbon Nanotubes Sodium Pyrene-1,3,6,8-tetrasulfonate Dpasv Simultaneous Determination
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5577
Collection省部共建新疆特有药用资源利用重点实验室
Corresponding AuthorMamat, X (Mamat, Xamxikamar)[ 2 ]; Hu, GZ (Hu, Guangzhi)[ 2 ]
Affiliation1.Xinjiang Univ, Coll Chem & Chem Engn, Minist Educ & Autonomous Reg, Key Lab Oil Gas Fine Chem Engn, Urumqi 830046, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, State Key Lab Basis Xinjiang Indigenous Med Plant, Key Lab Chem Plant Resources Arid Reg, Urumqi 830011, Peoples R China
3.Umea Univ, Dept Phys, S-90187 Umea, Sweden
4.Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Jiang, RY ,Liu, NT ,Gao, SS ,et al. A Facile Electrochemical Sensor Based on PyTS-CNTs for Simultaneous Determination of Cadmium and Lead Ions[J]. SENSORS,2018,18(5):1-13.
APA Jiang, RY .,Liu, NT .,Gao, SS .,Mamat, X .,Su, YH .,...&Hu, GZ .(2018).A Facile Electrochemical Sensor Based on PyTS-CNTs for Simultaneous Determination of Cadmium and Lead Ions.SENSORS,18(5),1-13.
MLA Jiang, RY ,et al."A Facile Electrochemical Sensor Based on PyTS-CNTs for Simultaneous Determination of Cadmium and Lead Ions".SENSORS 18.5(2018):1-13.
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