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Issue 48, 2018
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Synthesis of fluorescent ionic liquid-functionalized silicon nanoparticles with tunable amphiphilicity and selective determination of Hg2+

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Abstract

Fluorescent silicon nanoparticles have attracted much attention in recent years due to their superior optical properties, strong photostability, low toxicity, and favorable biocompatibility. In this paper, we have prepared imidazolium ionic liquid-functionalized silicon nanoparticles (IL@SiNPs) via a simple one-pot hydrothermal route from 1-(trimethoxysilyl)propyl-3-methylimidazolium chloride that was denoted as [SmIm]Cl and sodium citrate. The synthetic IL@SiNPs could be a novel label-free sensing probe for sensitive and selective detection of Hg2+ ions with energy transfer from IL@SiNPs to Hg2+. A good linear relationship was obtained from 0 to 40 μmol L−1 with a detection limit of 0.45 μM. Furthermore, the solubility of the IL@SiNPs can be facilely converted by anion exchange without complex chemical modification. The ionic liquid-modified SiNPs may show great promise in biological and environmental applications due to their excellent biocompatibility and optical performance.

Graphical abstract: Synthesis of fluorescent ionic liquid-functionalized silicon nanoparticles with tunable amphiphilicity and selective determination of Hg2+

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Publication details

The article was received on 11 Aug 2018, accepted on 14 Nov 2018 and first published on 16 Nov 2018


Article type: Paper
DOI: 10.1039/C8TB02109K
Citation: J. Mater. Chem. B, 2018,6, 8214-8220
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    Synthesis of fluorescent ionic liquid-functionalized silicon nanoparticles with tunable amphiphilicity and selective determination of Hg2+

    Q. Li, K. Peng, Y. Lu, A. Li, F. Che, Y. Liu, X. Xi, Q. Chu, T. Lan and Y. Wei, J. Mater. Chem. B, 2018, 6, 8214
    DOI: 10.1039/C8TB02109K

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