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Ag Doped Titanium Dioxide Nanocomposite‐modified Glassy Carbon Electrode as Electrochemical Interface for Catechol Sensing
Author(s) -
Ravishankar T. N.,
Suresh Kumar K.,
Teixeira S. R.,
Fernandez C.,
Ramakrishnappa T.
Publication year - 2016
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201500238
Subject(s) - catechol , electrode , glassy carbon , electrochemistry , materials science , nanocomposite , carbon fibers , inorganic chemistry , electrochemical gas sensor , working electrode , chemical engineering , chemistry , composite number , nanotechnology , cyclic voltammetry , organic chemistry , composite material , engineering
The electrochemical sensing of catechol (CC) on a glassy carbon electrode modified with the ionothermal assisted synthesis of Ag doped TiO 2 a nanoparticle has been successfully demonstrated for the first time.Ag doped TiO 2 nanoparticles composite modified glassy carbon electrode exhibits higher electrocatalytic activity towards oxidation of catechol than glassy carbon electrode itself. The modified electrode also exhibits high selectivity towards this analyte in the presence of some of the metal ions and some of the biological compounds. Linear ranges and the limit of detections with the above electrode are 1–15 µM and 0.0249 µM respectively. The optimized protocol has been utilized for monitoring the catechol in some of the natural samples like apple juice and green tea and in industrial effluents.