N-doped graphene quantum dots for detection of palladium(II) ions and carbofuran

Dorontić Slađana and Marković Olivera and Kleut Duška and Jovanovic Svetlana: N-doped graphene quantum dots for detection of palladium(II) ions and carbofuran.

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Abstract

We produced Graphene Quantum Dots (GQDs) by electrochemical oxidation of graphite rods and exposed them to gamma irradiation at a dose of 200 kGy, in the presence of ethylenediamine. Before irradiation, oxygen was removed from the GQDs dispersion by purging with Ar. These conditions induced both chemical reduction as well as the incorporation of N atoms in the structure of GQDs. Thus, N-doped GQDs were produced. The morphology of dots was investigated using atomic force microscopy. UV-Vis and photoluminescence spectroscopy were used to investigate the optical properties of modified GQDs. The changes in the intensities of PL emission spectra were studied in the presence of different concentrations of Pd2+ and pesticide carbofuran. We observed promising results for the application of N-doped GQDs for non-enzymatic PL detection of selected metal ions and molecules of pesticide.

Item Type:	Conference or Workshop Item
Journal or Publication Title:	Proceedings of the International Symposium on Analytical and Environmental Problems
Date:	2021
Volume:	27
ISBN:	978-963-306-835-9
Page Range:	pp. 143-147
Language:	English
Publisher:	University of Szeged
Place of Publication:	Szeged
Event Title:	International Symposium on Analytical and Environmental Problems (27.) (2021) (Szeged)
Related URLs:	http://acta.bibl.u-szeged.hu/75798/
Uncontrolled Keywords:	Környezetkémia, Kémia
Additional Information:	Bibliogr.: p. 146-147. ; ill. ; összefoglalás angol nyelven
Subjects:	01. Natural sciences 01. Natural sciences > 01.04. Chemical sciences
Date Deposited:	2022. May. 30. 12:36
Last Modified:	2022. Aug. 08. 15:40
URI:	http://acta.bibl.u-szeged.hu/id/eprint/75949

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