Amino functionalized graphene quantum dots - new fluorescent sensor for Co2+ ions
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Graphene quantum dots (GQDs) were fabricated by simple electrochemical oxidation of
graphite electrodes. Modified GQDs were obtained by gamma irradiation of GQDs, EDA, and
IPA mixture at a dose of 25 kGy. In this approach, GQDs with the amino groups were produced
(25γ-GQDs). These GQDs have shown a high uniformity, good dispersibility in water, and
strong photoluminescence in the blue part of the electromagnetic spectrum. Modified GQDs
were studied in the optical detection of Co2+ ions. The PL intensities of GQDs were measured
in the presence of Co2+ ions in the concentration range 0-7.5 µmol L-1. It was demonstrated that PL intensities decreased linearly in the concentration range 0-2.5 µmol L-1. The value of the coefficient of determination (R2= 0.95949) indicates the potential of 25γ-GQDs for application
in optical sensing of Co2+ ions.
Кључне речи:
Graphene quantum dots / electrochemical oxidation / graphite electrodes / Co2+ ionsИзвор:
Proceedings - The 27th International Symposium on Analytical and Environmental Problems, 2021, 107-111Издавач:
- Szeged, Hungary : University of Szeged
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
Напомена:
- 27th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 22-23, 2021
Институција/група
IHTMTY - CONF AU - Dorontić, Slađana AU - Marković, Olivera AU - Kleut, Duška AU - Jovanović, Svetlana PY - 2021 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4882 AB - Graphene quantum dots (GQDs) were fabricated by simple electrochemical oxidation of graphite electrodes. Modified GQDs were obtained by gamma irradiation of GQDs, EDA, and IPA mixture at a dose of 25 kGy. In this approach, GQDs with the amino groups were produced (25γ-GQDs). These GQDs have shown a high uniformity, good dispersibility in water, and strong photoluminescence in the blue part of the electromagnetic spectrum. Modified GQDs were studied in the optical detection of Co2+ ions. The PL intensities of GQDs were measured in the presence of Co2+ ions in the concentration range 0-7.5 µmol L-1. It was demonstrated that PL intensities decreased linearly in the concentration range 0-2.5 µmol L-1. The value of the coefficient of determination (R2= 0.95949) indicates the potential of 25γ-GQDs for application in optical sensing of Co2+ ions. PB - Szeged, Hungary : University of Szeged C3 - Proceedings - The 27th International Symposium on Analytical and Environmental Problems T1 - Amino functionalized graphene quantum dots - new fluorescent sensor for Co2+ ions SP - 107 EP - 111 UR - https://hdl.handle.net/21.15107/rcub_cer_4882 ER -
@conference{ author = "Dorontić, Slađana and Marković, Olivera and Kleut, Duška and Jovanović, Svetlana", year = "2021", abstract = "Graphene quantum dots (GQDs) were fabricated by simple electrochemical oxidation of graphite electrodes. Modified GQDs were obtained by gamma irradiation of GQDs, EDA, and IPA mixture at a dose of 25 kGy. In this approach, GQDs with the amino groups were produced (25γ-GQDs). These GQDs have shown a high uniformity, good dispersibility in water, and strong photoluminescence in the blue part of the electromagnetic spectrum. Modified GQDs were studied in the optical detection of Co2+ ions. The PL intensities of GQDs were measured in the presence of Co2+ ions in the concentration range 0-7.5 µmol L-1. It was demonstrated that PL intensities decreased linearly in the concentration range 0-2.5 µmol L-1. The value of the coefficient of determination (R2= 0.95949) indicates the potential of 25γ-GQDs for application in optical sensing of Co2+ ions.", publisher = "Szeged, Hungary : University of Szeged", journal = "Proceedings - The 27th International Symposium on Analytical and Environmental Problems", title = "Amino functionalized graphene quantum dots - new fluorescent sensor for Co2+ ions", pages = "107-111", url = "https://hdl.handle.net/21.15107/rcub_cer_4882" }
Dorontić, S., Marković, O., Kleut, D.,& Jovanović, S.. (2021). Amino functionalized graphene quantum dots - new fluorescent sensor for Co2+ ions. in Proceedings - The 27th International Symposium on Analytical and Environmental Problems Szeged, Hungary : University of Szeged., 107-111. https://hdl.handle.net/21.15107/rcub_cer_4882
Dorontić S, Marković O, Kleut D, Jovanović S. Amino functionalized graphene quantum dots - new fluorescent sensor for Co2+ ions. in Proceedings - The 27th International Symposium on Analytical and Environmental Problems. 2021;:107-111. https://hdl.handle.net/21.15107/rcub_cer_4882 .
Dorontić, Slađana, Marković, Olivera, Kleut, Duška, Jovanović, Svetlana, "Amino functionalized graphene quantum dots - new fluorescent sensor for Co2+ ions" in Proceedings - The 27th International Symposium on Analytical and Environmental Problems (2021):107-111, https://hdl.handle.net/21.15107/rcub_cer_4882 .