Jump to main content
Jump to site search

Issue 11, 2011
Previous Article Next Article

Silver nanoparticles as a cyanide colorimetric sensor in aqueous media

Author affiliations

Abstract

The interaction between aqueous colloidal silver nanoparticles (AgNPs) and cyanide ions was studied using UV-Vis absorption and scanning electron microscopy (SEM) techniques. It was found that AgNPs were oxidized by dissolved oxygen in the presence of cyanide ions, resulting in a considerable decrease in the intensity of the surface plasmon resonance (SPR) absorption band of AgNPs. So, we propose a simple, cost effective, rapid, sensitive and selective colorimetric sensor for the detection of cyanide using AgNPs in aqueous media. There is a linear relationship between the absorbance intensity of AgNPs and the concentration of cyanide ions over the range of 16.7 μmol L−1–133.3 μmol L−1 at 394 nm. The proposed method has been successfully used for the determination of cyanide in water samples.

Graphical abstract: Silver nanoparticles as a cyanide colorimetric sensor in aqueous media

Back to tab navigation

Publication details

The article was received on 09 Sep 2011, accepted on 09 Sep 2011 and first published on 07 Oct 2011


Article type: Paper
DOI: 10.1039/C1AY05567D
Anal. Methods, 2011,3, 2599-2603

  •   Request permissions

    Silver nanoparticles as a cyanide colorimetric sensor in aqueous media

    S. Hajizadeh, K. Farhadi, M. Forough and R. E. Sabzi, Anal. Methods, 2011, 3, 2599
    DOI: 10.1039/C1AY05567D

Search articles by author

Spotlight

Advertisements