Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO(2) and TiO(2) towards Toxic Hg(2+) Ions

We have synthesized sulfonamide based nano-composites of SiO(2) and TiO(2) for selective and sensitive determination of toxic metal ion Hg(2+) in aqueous medium. Nano-composites (11) and (12) were morphologically characterized with FT-IR, solid state NMR, UV-vis, FE SEM, TEM, EDX, BET, pXRD and elem...

Descripción completa

Detalles Bibliográficos
Autores principales: Ekta, Utreja, Divya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8621696/
https://www.ncbi.nlm.nih.gov/pubmed/34835846
http://dx.doi.org/10.3390/nano11113082
Descripción
Sumario:We have synthesized sulfonamide based nano-composites of SiO(2) and TiO(2) for selective and sensitive determination of toxic metal ion Hg(2+) in aqueous medium. Nano-composites (11) and (12) were morphologically characterized with FT-IR, solid state NMR, UV-vis, FE SEM, TEM, EDX, BET, pXRD and elemental analysis. The comparative sensing behavior, pH effect and sensor concentrations were carried out with fluorescence signaling on spectrofluorometer and nano-composites (11) and (12), both were evaluated as “turn-on” fluorescence detector for the toxic Hg(2+) ions. The LODs were calculated to be 41.2 and 18.8 nM, respectively of nano-composites (11) and (12). The detection limit of TiO(2) based nano-composites was found comparatively lower than the SiO(2) based nano-composites.

Ejemplares similares