Jump to main content
Jump to site search


A visible chemosensor based on carbohydrazide for Fe(II), Co(II) and Cu(II) in aqueous solution

Author affiliations

Abstract

A colorimetric sensor with pyridyl and carbohydrazide components has been synthesized and visibly turns blue in the presence of Fe(II). The colorless sensor also changes color when exposed to Co(II) and Cu(II), but its color becomes yellow. The sensor shows no visible response to other metal ions such Ca2+, Cr3+, Mn2+, Fe3+, Ni2+, Zn2+, Cd2+, Ag+, Hg2+, and Pb2+. The binding ratio of the sensor to Fe(II), Co(II), and Cu(II) is 2 sensors to 1 metal ion. The binding constants of the sensor are: Fe(II): 1.0 × 109 M−2, Co(II): 2 × 109 M−2, and Cu(II): 3.0 × 109 M−2. The sensor works well at neutral pH and micromolar concentrations of Fe(II), Co(II), and Cu(II) can be detected in water samples. The sensor's color response to Cu(II) is uniquely attenuated by glutathione.

Graphical abstract: A visible chemosensor based on carbohydrazide for Fe(ii), Co(ii) and Cu(ii) in aqueous solution

Back to tab navigation

Supplementary files

Publication details

The article was received on 27 Nov 2018, accepted on 02 Mar 2019 and first published on 13 Mar 2019


Article type: Paper
DOI: 10.1039/C8PP00545A
Citation: Photochem. Photobiol. Sci., 2019, Advance Article

  •   Request permissions

    A visible chemosensor based on carbohydrazide for Fe(II), Co(II) and Cu(II) in aqueous solution

    M. Yang, J. B. Chae, C. Kim and R. G. Harrison, Photochem. Photobiol. Sci., 2019, Advance Article , DOI: 10.1039/C8PP00545A

Search articles by author

Spotlight

Advertisements