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Issue 11, 2018
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A green synthesis of highly luminescent carbon dots from itaconic acid and their application as an efficient sensor for Fe3+ ions in aqueous medium

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Abstract

The green synthesis of carbon dots (CDs) is one of the hot research areas in the present-day context. We have synthesized highly luminescent nitrogen-doped CDs (N-CDs) in a green way that can be adopted for the large-scale production of luminescent N-CDs. The aqueous solution of N-CDs possesses high colloidal and luminescence stability under various environments. We have demonstrated the N-CDs as a sensitive and selective fluorescence sensor for the determination of Fe3+ ions, which are a well-known environmental pollutant. We have achieved a limit of detection (LOD) of about 96 nM, which is much lower than most of the previously reported CD-based Fe3+ sensors. Complexation between the oxygen functionalities of N-CDs and Fe3+ followed by photoinduced electron transfer from N-CDs to Fe3+ ions is found to be the most probable mechanism for the observed sensing behavior.

Graphical abstract: A green synthesis of highly luminescent carbon dots from itaconic acid and their application as an efficient sensor for Fe3+ ions in aqueous medium

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Publication details

The article was received on 17 Feb 2018, accepted on 10 Apr 2018 and first published on 13 Apr 2018


Article type: Paper
DOI: 10.1039/C8NJ00813B
Citation: New J. Chem., 2018,42, 8933-8942
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    A green synthesis of highly luminescent carbon dots from itaconic acid and their application as an efficient sensor for Fe3+ ions in aqueous medium

    V. Ramanan, S. H. Subray and P. Ramamurthy, New J. Chem., 2018, 42, 8933
    DOI: 10.1039/C8NJ00813B

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