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2000
Volume 21, Issue 7
  • ISSN: 1573-4110
  • E-ISSN: 1875-6727

Abstract

Background

Cyanide is a toxic anion and may be discarded into the water environment, which is a serious threat to human beings and the environment. Hence, it is essential to explore a facile, sensitive method for cyanide detection. Polyaniline/Cu-vanadate nanobelts serve as electrode materials for sensitive cyanide determination.

Methods

Polyaniline/Cu-vanadate nanobelts were obtained by a simple route using polyaniline, Cu-vanadate nanobelts. The polyaniline/Cu-vanadate nanobelts were measured electron microscopy, diffraction, infrared spectrum, and electrochemical methods.

Results

Amorphous polyaniline nanoparticles with a particle size of about 100 nm were attached firmly to the surface of Cu-vanadate nanobelts. Electrochemical sensing properties for cyanide detection were analyzed using a cyclic voltammetry technique using the nanobelts-modified electrode. The cyclic voltammograms (CV) peaks centered at +0.64 V and +0.54 V were observed using the polyaniline/Cu-vanadate nanobelts in 0.1 M KCl solution with 2 mM cyanide. The proposed composite nanobelt-modified electrode possessed the detection range and detection limit of 0.001-2 mM and 0.22 μM, respectively.

Conclusion

Polyaniline greatly enhances the electro-catalytic performance of the Cu-vanadate nanobelt-modified electrode for cyanide detection.

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Sensitive Electrochemical Sensing Properties for Cyanide Detection Using Polyaniline/Cu-Vanadate Nanobelt-modified Electrode
Current Analytical Chemistry 21, 877 (2025); https://doi.org/10.2174/0115734110322886240918105204
/content/journals/cac/10.2174/0115734110322886240918105204
/content/journals/cac/10.2174/0115734110322886240918105204
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  • Article Type:     Research Article
Keyword(s): Cu-vanadate nanobelt; cyanide; cyclic voltammograms; Electrochemical sensing property; electrode; electron microscopy; glassy carbon electrode; polyaniline

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