N-doped graphene quantum dots for detection of palladium(II) ions and carbofuran
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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 ethylene-diamine. 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.
Keywords:
Graphene Quantum Dots / electrochemical oxidation / morphology / atomic force microscopy / photoluminescence spectroscopy / UV-Vis spectroscopySource:
The 27th International Symposium on Analytical and Environmental Problems, 2021, 143-147Publisher:
- Szeged, Hungary : University of Szeged
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) (RS-200017)
Note:
- 27th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 22-23, 2021
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IHTMTY - CONF AU - Dorontić, Slađana AU - Marković, Olivera AU - Kleut, Duška AU - Jovanović, Svetlana PY - 2021 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4879 AB - 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 ethylene-diamine. 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. PB - Szeged, Hungary : University of Szeged C3 - The 27th International Symposium on Analytical and Environmental Problems T1 - N-doped graphene quantum dots for detection of palladium(II) ions and carbofuran SP - 143 EP - 147 UR - https://hdl.handle.net/21.15107/rcub_cer_4879 ER -
@conference{ author = "Dorontić, Slađana and Marković, Olivera and Kleut, Duška and Jovanović, Svetlana", year = "2021", 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 ethylene-diamine. 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.", publisher = "Szeged, Hungary : University of Szeged", journal = "The 27th International Symposium on Analytical and Environmental Problems", title = "N-doped graphene quantum dots for detection of palladium(II) ions and carbofuran", pages = "143-147", url = "https://hdl.handle.net/21.15107/rcub_cer_4879" }
Dorontić, S., Marković, O., Kleut, D.,& Jovanović, S.. (2021). N-doped graphene quantum dots for detection of palladium(II) ions and carbofuran. in The 27th International Symposium on Analytical and Environmental Problems Szeged, Hungary : University of Szeged., 143-147. https://hdl.handle.net/21.15107/rcub_cer_4879
Dorontić S, Marković O, Kleut D, Jovanović S. N-doped graphene quantum dots for detection of palladium(II) ions and carbofuran. in The 27th International Symposium on Analytical and Environmental Problems. 2021;:143-147. https://hdl.handle.net/21.15107/rcub_cer_4879 .
Dorontić, Slađana, Marković, Olivera, Kleut, Duška, Jovanović, Svetlana, "N-doped graphene quantum dots for detection of palladium(II) ions and carbofuran" in The 27th International Symposium on Analytical and Environmental Problems (2021):143-147, https://hdl.handle.net/21.15107/rcub_cer_4879 .