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Lighting up of carbon dots for copper(II) detection using an aggregation-induced enhanced strategy.
- Source :
- Analyst; 2/7/2022, p417-422, 6p
- Publication Year :
- 2022
-
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 Cu<superscript>2+</superscript> owing to the complexation of Cu(II) and the O-CDs. Cu<superscript>2+</superscript> 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 Cu<superscript>2+</superscript> 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00032654
- Database :
- Complementary Index
- Journal :
- Analyst
- Publication Type :
- Academic Journal
- Accession number :
- 154970283
- Full Text :
- https://doi.org/10.1039/d1an02147h