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

Article information


Submitted
09 Sep 2011
Accepted
09 Sep 2011
First published
07 Oct 2011

Anal. Methods, 2011,3, 2599-2603
Article type
Paper

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

Social activity

Search articles by author

Spotlight

Advertisements