Issue 12, 2016

N-dots as a photoluminescent probe for the rapid and selective detection of Hg2+ and Ag+ in aqueous solution

Abstract

Green fluorescent nitrogen-rich quantum dots (N-dots) have been synthesized under mild conditions (50 °C in methanol) and applied as a turn-off chemosensor for the rapid and selective detection of Hg2+ and Ag+ in aqueous solutions. Distinguishing between Hg2+ and Ag+ was also successfully achieved simply through the addition of ethylene diamine tetraacetic acid (EDTA). These N-dots–Hg and N-dots–Ag could also be used as turn-on chemosensors for biothiols through their binding competition for Hg2+ and Ag+ with N-dots.

Graphical abstract: N-dots as a photoluminescent probe for the rapid and selective detection of Hg2+ and Ag+ in aqueous solution

Supplementary files

Article information

Article type
Communication
Submitted
13 Kax 2015
Accepted
27 Nah 2016
First published
29 Nah 2016

J. Mater. Chem. B, 2016,4, 2086-2089

N-dots as a photoluminescent probe for the rapid and selective detection of Hg2+ and Ag+ in aqueous solution

Z. Wu, M. Feng, X. Chen and X. Tang, J. Mater. Chem. B, 2016, 4, 2086 DOI: 10.1039/C5TB02628H

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