Journal
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume 22, Issue 6, Pages 1711-1719Publisher
SPRINGER
DOI: 10.1007/s10008-017-3872-0
Keywords
CeO2 nanoparticles; Zn2+ ions; Electrochemical sensor; Differential pulse anodic stripping voltammetry; Sucrose-nitrate decomposition; Transmission electron microscopy
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Funding
- DST-SERB, Government of India, New Delhi, India [EMR/2016/002466, ECR/2017/000743]
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A simple strategy has been proposed to quantify Zn2+ ions using CeO2 nanoparticle-modified glassy carbon electrode. The CeO2 nanoparticles were prepared by sucrose-nitrate decomposition method, and it was characterized by X-ray diffraction (XRD), FT-IR, TEM, and surface area analyzer. The synthesized CeO2 nanoparticles were used as modifier molecules as a thin film on glassy carbon electrode (GCE) in the trace level quantification of Zn2+ by using cyclic voltammetry (CV) and differential pulse anodic stripping voltammetry (DPASV) techniques. The fabricated sensor exhibited a good analytical response towards Zn2+ ions. The modified electrode showed a wide linearity in the concentration range 20-380 mu g L-1 with a limit of detection 0.36 mu g L-1. The proposed electrochemical sensor was successfully applied to trace level Zn2+ quantification from real sample matrices.
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