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Issue 86, 2014
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Polyamine-functionalized carbon nanodots: a novel chemiluminescence probe for selective detection of iron(III) ions

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Abstract

We firstly studied the chemiluminescence behavior of branched poly(ethylenimine)-functionalized carbon dots (BPEI-CDs). The results demonstrated that BPEI-CDs can be used as a novel chemiluminescence probe in alkaline solution for rapid detection of iron(III) ions with high sensitivity and selectivity. A possible CL mechanism was studied by UV-Vis, fluorescence, CL, FTIR, XPS and EPR spectroscopy. Iron(III) could be selectively captured by the surface functional groups of BPEI and injected holes into the carbon dots which resulted in a great improvement of the BPEI-CDs' CL signal in alkaline solution. The work sheds new light on the characteristics and further application of functionalized carbon dots.

Graphical abstract: Polyamine-functionalized carbon nanodots: a novel chemiluminescence probe for selective detection of iron(iii) ions

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The article was received on 04 Aug 2014, accepted on 05 Sep 2014 and first published on 08 Sep 2014


Article type: Communication
DOI: 10.1039/C4RA08071H
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Citation: RSC Adv., 2014,4, 45768-45771
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    Polyamine-functionalized carbon nanodots: a novel chemiluminescence probe for selective detection of iron(III) ions

    L. Zhao, F. Geng, F. Di, L. Guo, B. Wan, Y. Yang, H. Zhang and G. Sun, RSC Adv., 2014, 4, 45768
    DOI: 10.1039/C4RA08071H

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