Jump to main content
Jump to site search

Issue 12, 2019
Previous Article Next Article

Microwave-assisted synthesis of nitrogen-rich carbon dots as effective fluorescent probes for sensitive detection of Ag+

Author affiliations

Abstract

A simple strategy for the synthesis of fluorescent nitrogen-rich carbon dots (N-dots) is developed through microwave-assisted reaction of 2-azidoimidazole with different hydroxyl compounds. With the increase of hydroxyl groups of the crosslinkers, the emission property of the corresponding N-dots was enhanced. Among them, N-dots with 2-azidoimidazole and glycerol as the starting materials showed high monodispersity, good stability, excellent water solubility and strong fluorescence emission with fluorescence quantum yield up to 27.9%. These N-dots were further employed as an effective chemosensor for Ag+ analysis via the static quenching effect and a good linear range of Ag+ detection was obtained from 20 nM to 6 μM with a limit of detection of 6.3 nM, displaying high selectivity toward Ag+ detection in real samples.

Graphical abstract: Microwave-assisted synthesis of nitrogen-rich carbon dots as effective fluorescent probes for sensitive detection of Ag+

  • This article is part of the themed collection: Carbon Dots
Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Oct 2019, accepted on 23 Oct 2019 and first published on 25 Oct 2019


Article type: Research Article
DOI: 10.1039/C9QM00624A
Mater. Chem. Front., 2019,3, 2751-2758

  •   Request permissions

    Microwave-assisted synthesis of nitrogen-rich carbon dots as effective fluorescent probes for sensitive detection of Ag+

    J. Feng, X. Zhao, W. Bian and X. Tang, Mater. Chem. Front., 2019, 3, 2751
    DOI: 10.1039/C9QM00624A

Search articles by author

Spotlight

Advertisements