Ag-doped nanostructured materials for electrochemical sensors

Author

Leonardi, S.G. ; Donato, N. ; Bonavita, A. ; Neri, G. ; Bonyani, M. ; Mirzaei, A.

Author_Institution

Dept. of Electron. Eng., Chem. & Ind. Eng., Univ. of Messina, Messina, Italy

fYear

2015

fDate

3-5 Feb. 2015

Firstpage

1

Lastpage

4

Abstract

Silver nanoparticles (AgNPs) embedded within polymethacrylic-acid (PMA) matrix were prepared by a simple chemical route. The obtained AgNPs@PMA composite sample was characterized by means of UV-Vis spectroscopy, SEM, TEM, XPS and used as electrodic material for electrochemical sensors. The electrocatalytic properties of a fabricated AgNPs@PMA/CNTs-modified electrode was investigated by cyclic voltammetry. A voltammetric sensor based on a disposable carbon electrode modified by AgNPs@PMA/CNTs composites has been developed for nitrate monitoring in water at neutral pH.

Keywords

carbon nanotubes; catalysis; catalysts; electrochemical electrodes; electrochemical sensors; electrochemistry; nanocomposites; nanofabrication; nanoparticles; nanosensors; organic compounds; voltammetry (chemical analysis); Ag-C; CNT; PMA matrix; SEM; TEM; UV-Vis spectroscopy; XPS; composite sample; cyclic voltammetry; disposable carbon electrode; electrocatalytic property; electrochemical sensor; electrodic material; nanoparticle; nanostructured material; neutral pH; nitrate monitoring; polymethacrylic-acid matrix; simple chemical route; voltammetric sensor; water; Electric potential; Electrodes; Ions; Nanoparticles; Sensors; Silver; Surface morphology; Ag@PMA/CNT; Nano structure; Nitrate reduction;

fLanguage

English

Publisher

ieee

Conference_Titel

AISEM Annual Conference, 2015 XVIII

Conference_Location

Trento

Type

conf

DOI

10.1109/AISEM.2015.7066829

Filename

7066829