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

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• 作者：Pengfei Niu ; César Fernández-Sánchez ; Martí Gich…
• 关键词：Sol ; gel process ; Lead(II) ; Cadmium(II) ; Energy dispersive X ; ray spectroscopy ; Square wave anodic stripping voltammetry ; Cyclic voltammetry ; Water analysis
• 刊名：Microchimica Acta
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：183
• 期：2
• 页码：617-623
• 全文大小：835 KB
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• 作者单位：Pengfei Niu (1)
  César Fernández-Sánchez (2)
  Martí Gich (1)
  Carla Navarro-Hernández (3)
  Pablo Fanjul-Bolado (3)
  Anna Roig (1)
  
  1. Institut de Ciència de Materials de Barcelona, ICMAB (CSIC), Campus UAB, 08193, Bellaterra, Spain
  2. Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC), Campus UAB, 08193, Bellaterra, Spain
  3. DropSens, S.L., Ed. CEEI, Parque Tecnológico de Asturias, 33428, Llanera, Asturias, Spain
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Analytical Chemistry
  Inorganic Chemistry
  Physical Chemistry
  Characterization and Evaluation Materials
  Monitoring, Environmental Analysis and Environmental Ecotoxicology
  
• 出版者：Springer Wien
• ISSN：1436-5073

文摘

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.