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Issue 31, 2015
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An ionic liquid promoted microwave-hydrothermal route towards highly photoluminescent carbon dots for sensitive and selective detection of iron(iii)

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Abstract

A facile approach towards photoluminescent carbon dots (CDs) has been developed by the microwave-hydrothermal treatment of rice straw in the mixed solvent of water and ionic liquid (1-allyl-3-methylimidazolium chloride, AMIM-Cl). AMIM-Cl helps to dissolve the cellulose in straw and provides nitrogen atoms for the resulting heteroatom doped CDs. As a result, the straw produced CDs possess a spherical morphology and a high quantum yield of about 22.58%, which is higher than the other CDs prepared from biomass. In addition, the CDs can serve as an effective label-free fluorescent sensor for the detection of Fe(III) ions with a very low detection limit of 200 nM.

Graphical abstract: An ionic liquid promoted microwave-hydrothermal route towards highly photoluminescent carbon dots for sensitive and selective detection of iron(iii)

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Publication details

The article was received on 03 Jan 2015, accepted on 27 Feb 2015 and first published on 27 Feb 2015


Article type: Paper
DOI: 10.1039/C5RA00089K
RSC Adv., 2015,5, 24205-24209

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    An ionic liquid promoted microwave-hydrothermal route towards highly photoluminescent carbon dots for sensitive and selective detection of iron(III)

    R. Liu, M. Gao, J. Zhang, Z. Li, J. Chen, P. Liu and D. Wu, RSC Adv., 2015, 5, 24205
    DOI: 10.1039/C5RA00089K

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