Lighting up of carbon dots for copper(II) detection using an aggregation-induced enhanced strategy.
Analyst
; 147(3): 417-422, 2022 Jan 31.
Article
em En
| MEDLINE
| ID: mdl-35029606
ABSTRACT
Carbon dots have promising prospects for analytical and monitoring purposes, but are greatly hindered by the aggregation-induced luminescence quenching owing to the π-π interaction or the non-radiation-excited radical complex formation. Herein hydrothermally prepared orange-yellow fluorescent carbon dots (O-CDs) show an aggregation-induced fluorescence enhancement (AIFE) with Cu2+ owing to the complexation of Cu(II) and the O-CDs. Cu2+ was then sensitively and selectively detected in the linear range from 0.02 to 30 µM with the detection limit of 14 nM, making the detection of Cu2+ in fresh water and E. coli lysate successful, showing that the as-prepared O-CDs could be well applied to the environmental monitoring of heavy metals.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Carbono
/
Pontos Quânticos
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Analyst
Ano de publicação:
2022
Tipo de documento:
Article