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A Facile Electroche...
A Facile Electrochemical Sensor Based on PyTS-CNTs for Simultaneous Determination of Cadmium and Lead Ions
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Jiang, Ruyuan (author)
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Liu, Niantao (author)
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Gao, Sanshuang (author)
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Mamat, Xamxikamar (author)
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Su, Yuhong (author)
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- Wågberg, Thomas, 1971- (author)
- Umeå universitet,Institutionen för fysik
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Li, Yongtao (author)
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Hu, Xun (author)
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Hu, Guangzhi (author)
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(creator_code:org_t)
- 2018-05-15
- 2018
- English.
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In: Sensors. - : MDPI. - 1424-8220. ; 18:5
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https://umu.diva-por... (primary) (Raw object)
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Subject headings
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- 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+.
Subject headings
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- carbon nanotubes
- sodium pyrene-1
- 3
- 6
- 8-tetrasulfonate
- DPASV
- simultaneous determination
- Cd2
- -2
Publication and Content Type
- ref (subject category)
- art (subject category)
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Sensors
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- By the author/editor
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Jiang, Ruyuan
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Liu, Niantao
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Gao, Sanshuang
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Mamat, Xamxikama ...
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Su, Yuhong
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Wågberg, Thomas, ...
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show more...
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Li, Yongtao
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Hu, Xun
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Hu, Guangzhi
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Analytical Chemi ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Sensors
- By the university
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Umeå University