Carbon quantum dots fluorescence quenching for potassium optode construction.
carbon quantum dot
fluorescence
optode
potassium
quantum yield
quenching
Journal
Luminescence : the journal of biological and chemical luminescence
ISSN: 1522-7243
Titre abrégé: Luminescence
Pays: England
ID NLM: 100889025
Informations de publication
Date de publication:
Jun 2019
Jun 2019
Historique:
received:
13
11
2017
revised:
22
04
2018
accepted:
04
05
2018
pubmed:
30
4
2019
medline:
7
9
2019
entrez:
30
4
2019
Statut:
ppublish
Résumé
Photophysical phenomena associated with carbon nanoparticles in combination with biocompatibility and readily functionalizable properties have attracted significant interest for sensing and imaging applications. A potassium ion optode based on the fluorescence quenching of carbon quantum dots (CQDs) was constructed. The CQDs were synthesized using a microwave method, citric acid and 2,2'-(ethylene-dioxy)bis(ethylamine). A quantum yield of 7.1% was calculated for the synthesized CQDs. A linear dynamic range of about one-order of magnitude with a correlation coefficient of 0.99 was obtained. The optode was applied on real samples and a 0.60-1.60% error range was obtained relative to the ion-selective electrode.
Substances chimiques
Carbon
7440-44-0
Potassium
RWP5GA015D
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
402-406Informations de copyright
© 2019 John Wiley & Sons, Ltd.