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Synthesis of water-soluble fluorescent carbon dots from Setcreasea purpurea boom and its application for Br2 detection

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Abstract

Fluorescent carbon dots (CDs) were successfully synthesized via pyrolysis of Setcreasea purpurea boom, providing a simple and convenient method for the preparation of CDs without using toxic or expensive materials. The as-synthesized CDs exhibit excellent water-soluble property, good photostability, and higher fluorescence quantum yield (18%), which makes the as-obtained CDs serve as fluorescent inks for printing luminescent patterns for anti-counterfeiting. In addition, the fabricated CDs have sensitive and selective response to molecular bromine (Br2) and have been successfully used for the detection of Br2 in brine, which is based on the Br2-induced fluorescence quenching of CDs. According to UV-visible and transient state fluorescence spectroscopy, the fluorescence quenching of as-prepared CDs was due to the dynamic collision between the CDs and Br2.

Graphical abstract: Synthesis of water-soluble fluorescent carbon dots from Setcreasea purpurea boom and its application for Br2 detection

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Publication details

The article was received on 11 Nov 2017, accepted on 24 Nov 2017 and first published on 27 Nov 2017


Article type: Paper
DOI: 10.1039/C7AY02631E
Citation: Anal. Methods, 2018, Advance Article
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    Synthesis of water-soluble fluorescent carbon dots from Setcreasea purpurea boom and its application for Br2 detection

    H. Zhai, B. Zheng, F. Yang, M. Wang and D. Xiao, Anal. Methods, 2018, Advance Article , DOI: 10.1039/C7AY02631E

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