Abstract
A highly selective and sensitive fluorescent probe for the determination of Hg 2+ ions is reported using substituted mercaptotriazole functionalized TiO 2 nanoparticles (MMT@TiO 2 ). The functionalized TiO 2 nanoparticles were characterized by UV-vis spectrophotometric, spectrofluorometric, FT-IR, FT-Raman, XPS, TEM, SEM, EDAX and P-XRD analyses. The interaction of Hg 2+ ions with functionalized MMT@TiO 2 induced aggregation of nanoparticles causing chelation enhanced fluorescence. The limit of detection and limit of quantitation for the determination of Hg 2+ ions were found to be 2.18 × 10 -10 M and 6.61 × 10 -10 M, respectively. The method developed was successfully applied for the determination of Hg 2+ ions in environmental samples.
Original language | English |
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Pages (from-to) | 537-547 |
Number of pages | 11 |
Journal | Analytical Methods |
Volume | 11 |
Issue number | 4 |
DOIs | |
State | Published - 28 Jan 2019 |
Externally published | Yes |
ASJC Scopus subject areas
- Analytical Chemistry
- General Chemical Engineering
- General Engineering