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Issue 8, 2018
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Green synthesis of fluorescent carbon quantum dots for the detection of mercury(II) and glutathione

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Abstract

Herein, we report a green synthetic approach for the synthesis of water-soluble fluorescent CQDs via a simple one-step hydrothermal treatment using Tamarindus indica leaves for the first time. The prepared CQDs show an excitation-dependent behavior in the range from 260 to 400 nm with a high QY of approximately 46.6%. Further, the prepared CQDs serve as a very sensitive nanoprobe for the turn-off sensing of Hg2+ with a minimum LOD as low as 6 nM in the dynamic range from 0 to 0.1 μM. The attractiveness of the present sensing system is that it further acts as a turn-on sensor for GSH detection with good selectivity. The feasibility of the present sensing system is also examined using pond water samples for the detection of Hg2+. Thus, the present sensing system is reliable for sensing and several another analytical applications.

Graphical abstract: Green synthesis of fluorescent carbon quantum dots for the detection of mercury(ii) and glutathione

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Publication details

The article was received on 25 Jan 2018, accepted on 28 Feb 2018 and first published on 02 Mar 2018


Article type: Paper
DOI: 10.1039/C8NJ00432C
Citation: New J. Chem., 2018,42, 5814-5821
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    Green synthesis of fluorescent carbon quantum dots for the detection of mercury(II) and glutathione

    D. Bano, V. Kumar, V. K. Singh and S. H. Hasan, New J. Chem., 2018, 42, 5814
    DOI: 10.1039/C8NJ00432C

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