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Issue 25, 2018
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Fluorescent carbon dots directly derived from polyethyleneimine and their application for the detection of Co2+

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Abstract

In this paper, polyethyleneimine (PEI) was applied as a carbon source for synthesizing fluorescent carbon dots (CDs) through a facile and one-step hydrothermal route. Both the N-doping and the amino-functionalization of CDs were accomplished simultaneously. The CDs exhibited strong blue fluorescence and good dispersion in aqueous solution. A large number of amino groups on the surface of CDs greatly simplified the subsequent modification steps. Through an amide reaction, glutathione-functionalized CDs were successfully applied to the selective detection of Co2+, in the linear range from 2.0 × 10−5 to 1.0 × 10−4 mol L−1.

Graphical abstract: Fluorescent carbon dots directly derived from polyethyleneimine and their application for the detection of Co2+

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Publication details

The article was received on 05 Mar 2018, accepted on 09 May 2018 and first published on 14 May 2018


Article type: Paper
DOI: 10.1039/C8AY00481A
Citation: Anal. Methods, 2018,10, 2989-2993
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    Fluorescent carbon dots directly derived from polyethyleneimine and their application for the detection of Co2+

    B. Han, Y. Li, T. Peng, M. Yu, X. Hu and G. He, Anal. Methods, 2018, 10, 2989
    DOI: 10.1039/C8AY00481A

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