Colorimetric Detection of Iron(III) Ion Based on 4-Aminothiophenol and Schiff Base Naphthalene-2-ol Modified Silver Nanoparticles

Autor:	Wachirawit Samerjai, Pan Tongraung, Piyada Jittangprasert
Rok vydání:	2019
Předmět:	Schiff base 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Silver nanoparticle 0104 chemical sciences Ion chemistry.chemical_compound chemistry 0210 nano-technology Nuclear chemistry Naphthalene
Zdroj:	Asian Journal of Chemistry. 32:287-292
ISSN:	0975-427X 0970-7077
Popis:	A facile, highly selective colorimetric sensor based on 4-aminothiophenol (4-ATP) and Schiff base naphthalene-2-ol (L) modified silver nanoparticles (4-ATP-L-AgNPs) for detection of Fe(III) ion in aqueous solution. The presence of Fe(III) ion induced the aggregation of AgNPs that caused the red-shift from 430 to 440 nm, through a cooperative metal-ligand interaction from the coordination bond between Fe(III) ion and functional groups on AgNPs surface resulting in a colour change from dark brown to dark yellow with increasing absorption at 365 nm. The absorbance at 365 nm is linear with the concentration of Fe(III) ion ranging from 9.0 × 10-6 M to 9.0 × 10-3 M with a correlation coefficient of 0.9991. The detection limit of the developed method was 7.9 × 10-6 M. The practical application of 4-ATP-L-AgNPs for selective sensor for Fe(III) ion in various drinking water samples were demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::85ad711856f1102febb12d93cc770f35 https://doi.org/10.14233/ajchem.2020.22301 Zobrazit plný text záznamu