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Issue 33, 2018
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Novel luminescent lanthanide(III) hybrid materials: fluorescence sensing of fluoride ions and N,N-dimethylformamide

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Abstract

Two novel luminescent organic–inorganic hybrid materials, Ln(L-SBA15)3phen (Ln = Eu, Tb), were designed and synthesized. The organic ligand phenylurea was modified by the silane coupling agent 3-(triethoxysilyl)propyl isocyanate (TESPIC) to form a precursor (L), which was covalently bonded onto a mesoporous SBA-15 backbone to form mesoporous L-SBA15 through co-hydrolysis and co-condensation reactions. 1,10-Phenanthroline monohydrate (phen) was selected as the second ligand to improve the luminescence of the final products, and the two mesoporous hybrid materials Ln(L-SBA15)3phen were obtained after the coordination reaction between the organic ligands (phen and L-SBA15) and Ln(III) ions. Both the mesoporous hybrid materials were examined by Fourier transform infrared spectroscopy, transmission electron microscopy, small-angle X-ray diffraction, N2 adsorption–desorption curves, and photoluminescence spectroscopy. The results show that both the hybrid materials showed highly ordered mesoporous structures, high surface areas, and excellent photophysical properties (long luminescence lifetimes and high quantum efficiencies). Furthermore, the fluorescence sensing properties of the materials were investigated systematically, and the hybrid materials were revealed to be promising examples of dual functional materials with good ability to sense fluoride ions and a small organic molecule N,N-dimethylformamide.

Graphical abstract: Novel luminescent lanthanide(iii) hybrid materials: fluorescence sensing of fluoride ions and N,N-dimethylformamide

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Publication details

The article was received on 12 Jun 2018, accepted on 26 Jul 2018 and first published on 30 Jul 2018


Article type: Paper
DOI: 10.1039/C8DT02404A
Dalton Trans., 2018,47, 11530-11538

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    Novel luminescent lanthanide(III) hybrid materials: fluorescence sensing of fluoride ions and N,N-dimethylformamide

    X. Pang, L. Li, Y. Wei, X. Yu and Y. Li, Dalton Trans., 2018, 47, 11530
    DOI: 10.1039/C8DT02404A

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