Приказ основних података о документу
Amino functionalized graphene quantum dots - new fluorescent sensor for Co2+ ions
dc.creator | Dorontić, Slađana | |
dc.creator | Marković, Olivera | |
dc.creator | Kleut, Duška | |
dc.creator | Jovanović, Svetlana | |
dc.date.accessioned | 2021-12-03T13:35:34Z | |
dc.date.available | 2021-12-03T13:35:34Z | |
dc.date.issued | 2021 | |
dc.identifier.isbn | 978-963-306-835-9 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/4882 | |
dc.description.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. | sr |
dc.language.iso | en | sr |
dc.publisher | Szeged, Hungary : University of Szeged | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200026/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200017/RS// | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Proceedings - The 27th International Symposium on Analytical and Environmental Problems | sr |
dc.subject | Graphene quantum dots | sr |
dc.subject | electrochemical oxidation | sr |
dc.subject | graphite electrodes | sr |
dc.subject | Co2+ ions | sr |
dc.title | Amino functionalized graphene quantum dots - new fluorescent sensor for Co2+ ions | sr |
dc.type | conferenceObject | sr |
dc.rights.license | BY | sr |
dc.citation.spage | 107 | |
dc.citation.epage | 111 | |
dc.description.other | 27th International Symposium on Analytical and Environmental Problems, Szeged, Hungary, November 22-23, 2021 | sr |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_cer_4882 | |
dc.identifier.fulltext | http://cer.ihtm.bg.ac.rs/bitstream/id/21187/bitstream_21187.pdf | |
dc.type.version | publishedVersion | sr |