RT journal article
T1 Ceramic polyaniline-carbon composite obtained by ultrasound-assisted sol–gel route: Electrochemical performance towards environmental pollutants
A1 López-Iglesias, David
A1 Fanelli, Francesca
A1 Marchi, Lorenzo
A1 Alcántara Puerto, Rodrigo
A1 Cocchi, Marina
A1 Cubillana Aguilera, Laura
A1 Palacios Santander, José María
A1 García Guzmán, Juan José
A2 Química Analítica
A2 Química Física
K1 4-chloro-3-methylphenol
K1 Ceramic polyaniline-carbon material
K1 Electrochemical sensing
K1 Experimental design
K1 High-power ultrasound
K1 Tap water analysis
AB A new ceramic carbon polyaniline electrode material, namely Sonogel-Carbon-polyaniline (SNG-C-PANI), was synthesized using high-power ultrasound. The synthesis conditions were optimized by means of a full factorial design. The electroactivity of polyaniline, previously characterized by means of Raman spectroscopy, is retained into the sonogel matrix. After the synthesis and the subsequent characterization, the electrode material was applied in the electrochemical determination of a benchmark analyte, 4-chloro-3-methylphenol (PCMC), providing excellent figures of merit, e.g. high sensitivity (5.19 × 103 ± 110 µA/mM·cm2) and low limit of detection (0.36 µM), as well as suitable selectivity and reproducibility (%RSD < 4%). Besides the electroactive surface can be restored by performing a cyclic electrochemical treatment or simple mechanical polishing, minimizing fouling phenomena commonly found in conducting polymer layer-based sensors. The electrochemical detection of other chlorophenols of interest was also performed, obtaining remarkable analytical results. Finally, the electrochemical sensor was successfully applied in spiked tap water analyses. © 2021 The Author(s
PB ELSEVIER
SN 1572-6657
YR 2022
FD 2022
LK http://hdl.handle.net/10498/25992
UL http://hdl.handle.net/10498/25992
LA eng
NO Francesca Fanelli and Lorenzo Marchi thank Erasmus + Mobility Program from SEPIE/EC funds for the scholarship given to perform a research stage at the University of Cadiz. Spanish authors thank Junta de Andalucia and Institute of Research on Electron Microscopy and Materials (IMEYMAT) for providing research funds (‘Polybiosens’ project). They also thank 'Programa de Fomento e Impulso de la Investigación y de la Transferencia de la Universidad de Cádiz 2018-2019 y 2020-2021’ for the funds given through the projects PR2018-070 (Proyectos de Investigación-Puente 2018) and PR2020-013 (Proyectos de Investigación-Puente 2020), respectively.
DS Repositorio Institucional de la Universidad de Cádiz
RD 05-nov-2026