Visible light enhanced electrochemical detection of caffeic acid withwaxberry-like PtAuRu nanoparticles modified GCE
a College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China
b Chemistry Department, University of Toronto, Toronto M5S3H4, Canada
Sensors & Actuators: B. Chemical 2018, 272, 135--138
In this work, trimetallicPtAuRu nanoparticles were synthesized by a facile one-pot method and glassy carbonelectrode (GCE) modified with this trimetallic catalyst was used to detect caffeic acid (CA). Particularly, visiblelight illumination was introduced to assist the electrochemical assay and satisfactory results were achieved. Thelinear range obtained from differential pulse voltammetry (DPV) analysis was wide from 0.0087 mM to 16.6 mM.The obvious improvement of the response current towards CA is probably because of the surface plasmon resonance (SPR) effect of Au in the as-synthesized nanoparticles. These results indicate valuable potential of lightillumination in enhancing the performance of metallic nanocomposites-based sensors inelectrochemical detection.