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Fluorescent carbon dots directly derived from Polyethyleneimine and their application for Detection of Co2+

Abstract

In this paper, polyethyleneimine (PEI) as a carbon source was designed to synthesize fluorescent carbon dots (CDs) with 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 lot of free amino of the surface of CDs simplified the subsequent modifications. Through an amide reaction, glutathione-functional CDs were successfully applied to selective detection of Co2+, with the linear range from 2.0 × 10−5 to 1.0 × 10−4 mol L-1.

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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, Accepted Manuscript
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    Fluorescent carbon dots directly derived from Polyethyleneimine and their application for Detection of Co2+

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

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