English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Rapid and inexpensive detection of heavy metal pollution is highly required these days in order to combat pollution. Noble metal nanoparticles coated by organic molecules having surface plasmon resonance have recently played key role in conceptualizing and fabricating sensing devices for the detection of heavy metals. The present study uses the utility of vanillic acid coated silver nanoparticles (V-AgNPs) synthesized by chemical reduction for the colorimetric and surface-enhanced Raman scattering detection of heavy metal ions in aqueous solution. The synthesized V-AgNPs are of approximately 5–15 nm in size. The addition of synthesized V-AgNPs colloidal solution to control and metal ion laced water samples turns the solution color grayish black except for Cr(III) ions. The addition of V-AgNPs colloidal solution to the water samples containing Cr(III) ions turns the solution transparent. Furthermore, the addition of V-AgNPs to water samples containing Cr(III) ions and Mo(VI) creates unique Raman spectral signatures with high intensities that were used for the identification of these metal ions in aqueous solution. The addition of V-AgNPs to metal ions causes aggregation of the nanoparticles which results in change in color and Raman scattering signals. The obtained color patterns and Raman spectral signatures show the potential of V-AgNPs for low cost, timeless, affordable, convenient, sensitive, selective, and rapid detection of heavy metal ions in aqueous media.

analytical letters

Rapid Detection of Metal Ions in the Aqueous Medium by Colorimetry and Surface Enhanced Raman Scattering Using Vanillic Acid-Coated Silver Nanoparticles