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Issue 32, 2012
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Fluorescent carbon dots obtained from chitosan gel

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Abstract

In this communication we report the preparation of fluorescent carbon dots (CDs) from chitosan gel. We also studied the photoluminescent (PL) properties of CDs prepared in different pH conditions. While CDs prepared at pH 3 give an intense sharp blue fluorescence, those prepared at pH 1 or 5 give a broad emission. In addition, we also investigated CDs prepared from chitosan/Ag and chitosan/Au nanocomposites. It was observed that although the emission was broad and less well defined, there was an enhancement of PL emission for the CDs prepared from chitosan/Ag or chitosan/Au nanocomposites.

Graphical abstract: Fluorescent carbon dots obtained from chitosan gel

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Supplementary files

Article information


Submitted
06 Aug 2012
Accepted
15 Oct 2012
First published
18 Oct 2012

RSC Adv., 2012,2, 12156-12159
Article type
Communication

Fluorescent carbon dots obtained from chitosan gel

D. Chowdhury, N. Gogoi and G. Majumdar, RSC Adv., 2012, 2, 12156
DOI: 10.1039/C2RA21705H

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