Приказ основних података о документу
Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles
dc.creator | Periša, Jovana | |
dc.creator | Lenhardt Acković, Lea | |
dc.creator | Jovanović, Dragana J. | |
dc.creator | Dramićanin, Miroslav | |
dc.date.accessioned | 2019-02-20T12:10:44Z | |
dc.date.available | 2019-02-20T12:10:44Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0925-3467 | |
dc.identifier.uri | https://linkinghub.elsevier.com/retrieve/pii/S0925346719300345 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/8043 | |
dc.description.abstract | EuPO4 and Eu3+-activated REPO4 (RE = La, Dy, Er) ultrasmall fluorescent nanoparticles (NPs) with an average diameter of 2.1 nm were prepared via colloidal synthesis and tested for sensing Cu2+ and other heavy-metal ions. The pure monoclinic monazite crystal structure (space group P121/n1) of the synthesized particles was confirmed using X-ray diffraction measurements, and transmission electron microscopy images showed round particles with a narrow particle-size distribution. The NPs exhibited intense red emission, which is characteristic of the f-f electronic transition of Eu3+, and the quenching of their emission in the presence of heavy-metal ions was revealed by dispersing colloidal particles in a TRIS buffer and then performing photoluminescence measurements. Strong quenching of the emission (at a rate of 0.195 μM−1) was observed upon the addition of Cu2+ ions over the concentration range of 0–10 μM with a limit of detection of 60 nM for Cu2+. The recovery of nearly 90% of the original emission intensity of the probe was achieved via the addition of ethylendiaminetetraacetic acid and was possible in five quenching/recovery cycles. © 2019 | en |
dc.language.iso | en | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45020/RS// | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172056/RS// | |
dc.rights | restrictedAccess | |
dc.source | Optical Materials | |
dc.subject | Colloidal ultrasmall nanoparticles | en |
dc.subject | EuPO4 | en |
dc.subject | Eu3+-activated REPO4 | en |
dc.subject | Emission quenching | en |
dc.subject | Cu2+ detection | en |
dc.subject | EDTA recovery | en |
dc.title | Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Периша, Јована; Јовановић, Драгана Ј; Aцковић, Леа Ленхардт; Драмићанин, Мирослав; | |
dc.citation.volume | 89 | |
dc.citation.spage | 142 | |
dc.citation.epage | 148 | |
dc.identifier.wos | 000465509800020 | |
dc.identifier.doi | 10.1016/j.optmat.2018.12.059 | |
dc.citation.rank | M22 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85060729943 |
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