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Issue 4, 2019
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Trace level determination of Hg2+ ions in environmental samples with a mercaptotriazole-functionalized TiO2 nanostructure-based fluorescent probe

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Abstract

A highly selective and sensitive fluorescent probe for the determination of Hg2+ ions is reported using substituted mercaptotriazole functionalized TiO2 nanoparticles (MMT@TiO2). The functionalized TiO2 nanoparticles were characterized by UV-vis spectrophotometric, spectrofluorometric, FT-IR, FT-Raman, XPS, TEM, SEM, EDAX and P-XRD analyses. The interaction of Hg2+ ions with functionalized MMT@TiO2 induced aggregation of nanoparticles causing chelation enhanced fluorescence. The limit of detection and limit of quantitation for the determination of Hg2+ 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 Hg2+ ions in environmental samples.

Graphical abstract: Trace level determination of Hg2+ ions in environmental samples with a mercaptotriazole-functionalized TiO2 nanostructure-based fluorescent probe

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Publication details

The article was received on 26 Sep 2018, accepted on 12 Dec 2018 and first published on 13 Dec 2018


Article type: Paper
DOI: 10.1039/C8AY02109K
Citation: Anal. Methods, 2019,11, 537-547

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    Trace level determination of Hg2+ ions in environmental samples with a mercaptotriazole-functionalized TiO2 nanostructure-based fluorescent probe

    A. K. B., R. G., K. Sasitharan, V. T. P., A. Varghese and L. George, Anal. Methods, 2019, 11, 537
    DOI: 10.1039/C8AY02109K

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