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How to Enhance Sensitivity of Carbonaceous Ultrafine Particles to Metal Ions

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Abstract

Carbonaceous nanoparticles prepared via solvothermal treatment of citric acid with urea or thiourea have revealed selective response to mercury(II) ions enabling their quantitative determination by means of fluorescence spectroscopy. Dialysis of carbonaceous particles has improved their sensing capacity (reducing the detection limit and extending the detection range). Size distribution of the carbonaceous particles has been directly measured by means of nanoparticles tracking analysis for the first time.

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Notes

  1. Official IUPAC rules are still under development [6].

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ACKNOWLEDGMENTS

NTA experiments were carried out using the equipment of MSU Shared Research Equipment Center “Technologies for obtaining new nanostructured materials and their complex study” and purchased by MSU in the frame of the Equipment Renovation Program (National Project “Science”) and the MSU Program of Development.

Funding

This study was financially supported by the Russian Foundation for Basic Research (project number 20-03-00692) and the Russian Science Foundation (project number 21-73-20144).

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Authors and Affiliations

  1. Department of Chemistry, Lomonosov Moscow State University, 119234, Moscow, Russia

    E. A. Karpushkin, E. A. Mesnyankina, M. R. Tagirova, O. V. Zaborova & V. G. Sergeyev

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  1. E. A. Karpushkin
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  2. E. A. Mesnyankina
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  3. M. R. Tagirova
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  4. O. V. Zaborova
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  5. V. G. Sergeyev
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Correspondence to E. A. Karpushkin.

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Karpushkin, E.A., Mesnyankina, E.A., Tagirova, M.R. et al. How to Enhance Sensitivity of Carbonaceous Ultrafine Particles to Metal Ions. Russ J Gen Chem 92, 2042–2046 (2022). https://doi.org/10.1134/S1070363222100188

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  • DOI: https://doi.org/10.1134/S1070363222100188

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