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March 7, 2019Electroanalysis

Eco‐friendly Sensors Developed by Herbal Based Silver Nanoparticles for Electrochemical Detection of Mercury (II) Ion

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Authors

EEEce EkşinAEArzum ErdemTFTuğçe Fafal

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Overview

Laboratory study demonstrates rapid electrochemical detection of mercury ions in tap water using herbal silver nanoparticles, indicating a practical eco-friendly platform for water testing.

Key Points

  • To develop a single-use, eco-friendly electrochemical sensor utilizing herbal-synthesized silver nanoparticles and folic acid for selective detection of mercury (II) ions.
  • Modified pencil graphite electrodes sequentially with green-synthesized silver nanoparticles and folic acid.
  • Optimized surface modifier concentrations using differential pulse voltammetry and characterized electrode assembly via cyclic voltammetry and electrochemical impedance spectroscopy.
  • Evaluated sensor selectivity against ten interfering heavy metal ions and validated performance in real tap water samples.
  • Achieved a limit of detection for Hg2+ of 8.43 μM via cyclic voltammetry.
  • Demonstrated high selectivity for Hg2+ over competing cations: Ca2+, Cd2+, Cr3+, Cu2+, Mg2+, Ni2+, Pb2+, Zn2+, Co2+, and Mn2+.
  • Performed sensitive and selective detection of Hg2+ in tap water samples within 1 minute.

Cite This Study

Ekşin et al. (2019) studied this question.

synapsesocial.com/papers/6ab5da449f5e94797d862ff5https://doi.org/10.1002/elan.201800776
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