Screen-printed electrodes made of a bismuth nanoparticle porous carbon nanocomposite applied to the determination of heavy metal ions

This work reports on the simplified fabrication and on the characterization of bismuth-based screen-printed electrodes (SPEs) for use in heavy metal detection. A nanocomposite consisting of bismuth nanoparticles and amorphous carbon was synthesized by a combined one-step sol-gel and pyrolysis proces...

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Bibliographic Details
Published in:Mikrochimica acta (1966) 2016-02, Vol.183 (2), p.617-623
Main Authors: Niu, Pengfei, Fernández-Sánchez, César, Gich, Martí, Navarro-Hernández, Carla, Fanjul-Bolado, Pablo, Roig, Anna
Format: Article
Language:English
Subjects:
Analytical Chemistry
Bismuth
Carbon
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Drinking water
Electric properties
Electrodes
Heavy metals
Lead
Microengineering
Nanochemistry
Nanocomposites
Nanoparticles
Nanotechnology
Original Paper
Particle size distribution
Printing-ink
Pyrolysis
Screen printing
Sol-gel processes
Wastewater
Wastewater treatment
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Summary:This work reports on the simplified fabrication and on the characterization of bismuth-based screen-printed electrodes (SPEs) for use in heavy metal detection. A nanocomposite consisting of bismuth nanoparticles and amorphous carbon was synthesized by a combined one-step sol-gel and pyrolysis process and milled down to a specific particle size distribution as required for the preparation of an ink formulation to be used in screen printing. The resulting electrochemical devices were applied to the detection of Pb(II) and Cd(II) ions in water samples. The porous structure of carbon and the high surface area of the bismuth nanoparticles allow for the detection of Pb(II) and Cd(II) at concentration levels below 4 ppb. The application of the SPEs was demonstrated by quantifying these ions in tap drinking water and wastewater collected from an influent of an urban wastewater treatment plant. Graphical Abstract A tailor-made bismuth nanoparticle porous carbon nanocomposite material, synthesized by a sol-gel/pyrolysis process, was used for the fabrication of screen-printed electrodes applied to the detection of Pb(II) and Cd(II) in water samples.
ISSN:0026-3672
1436-5073
DOI:10.1007/s00604-015-1684-4