Application of graphene quantum dots in heavy metals and pesticides detection
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Graphene Quantum Dots (GQDs) were produced using electrochemical oxidation of graphite rods. Obtained GQDs were gamma-irradiated in the presence of the N atoms source, ethylenediamine. Both structural and morphological changes were investigated using UV-Vis, X-ray photoelectron and photoluminescence (PL) spectroscopy as well as atomic force microscopy. The ability of both types of dots to change PL intensity in the presence of pesticides such as malathion and glyphosate, as well as copper (II) ions was detected. These preliminary results indicated a high potential of produced GQDs to be applied as non-enzymatic PL sensors for the detection of selected pesticides and metal ions.
Keywords:
Graphene Quantum Dots / electrochemical oxidation / graphite rods / ethylenediamine / UV-Vis spectroscopy / X-ray photoelectron spectroscopy / photoluminescence spectroscopy / atomic force microscopy / malathion / glyphosate / copper (II) ions / photoluminescence sensorsSource:
Proceedings of the 26th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, 2020, 179-182Publisher:
- Szeged : University of Szeged
Projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) (RS-200017)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
- Ministry of Education, Science and Technological Development of the Republic of Serbia (Grant No. 451-03-68/2020-14/2652)
- ATeN Center (University of Palermo; project “Mediterranean Center for Human Health Advanced Biotechnologies (CHAB)” PON R&C 2007–2013)
Note:
- 26th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 23-24, 2020