ArticleEnvironmental monitoring and assessment2014
Maize tassel-modified carbon paste electrode for voltammetric determination of Cu(II).
Article in Environmental monitoring and assessment, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Sustainable Carbon Source from Almond Shell Waste: Synthesis, Characterization, and Electrochemical Properties.Materials (Basel, Switzerland) · 2025Article
- Construction of a nanostructure-based electrochemical sensor for voltammetric determination of bisphenol A.Environmental monitoring and assessment · 2015Article
- Electrochemical determination of hydrazine using a ZrO2 nanoparticles-modified carbon paste electrode.Environmental monitoring and assessment · 2015Article
- High Sensitive Sensor Fabricated by Reduced Graphene Oxide/Polyvinyl Butyral Nanofibers for Detecting Cu (II) in Water.International journal of analytical chemistry · 2015Article
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3 authors.
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Abstract
The preparation and application of a practical electrochemical sensor for environmental monitoring and assessment of heavy metal ions in samples is a subject of considerable interest. In this paper, a carbon paste electrode modified with maize tassel for the determination of Cu(II) has been proposed. Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) were used to study morphology and identify the functional groups on the modified electrode, respectively. First, Cu(II) was adsorbed on the carbon paste electrode surface at open circuit and voltammetric techniques were used to investigate the electrochemical performances of the sensor. The electrochemical sensor showed an excellent electrocatalytic activity towards Cu(II) at pH 5.0 and by increasing the amount of maize tassel biomass, a maximum response at 1:2.5 (maize tassel:carbon paste; w/w) was obtained. The electrocatalytic redox current of Cu(II) showed a linear response in the range (1.23 μM to 0.4 mM) with the correlation coefficient of 0.9980. The limit of detection and current-concentration sensitivity were calculated to be 0.13 (±0.01) μM and 0.012 (±0.001) μA/μM, respectively. The sensor gave good recovery of Cu(II) in the range from 96.0 to 98.0 % when applied to water samples.
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