期刊
JOURNAL OF RARE EARTHS
卷 39, 期 6, 页码 666-673出版社
ELSEVIER
DOI: 10.1016/j.jre.2020.04.012
关键词
Hybrid material; Ternary europium complex; Imidazophenanthroline; Titania; Fluorescence sensing; Rare earths
资金
- National Natural Science Foundation of China [21473133, 21173164]
A novel luminescent europium-centered hybrid material named Eu(tta)(3)NCP-TiO2 was prepared and characterized, showing good thermostability and long luminescence lifetime. It exhibited superior detection for nitrobenzene molecule and Cu2+ ion, with detection limits of 5.593 x 10(-5) and 9.566 x 10(-5) mol/L, respectively. This material can serve as an efficient fluorescence probe for the detection of nitrobenzene and Cu2+ ion.
By employing a rational approach, we prepared a novel kind of luminescent europium-centered hybrid material named Eu(tta)(3)NCP-TiO2. The resulting material was characterized by FT-IR spectra, SEM, X-ray diffraction, thermogravimetric analysis, and photoluminescence spectra. The hybrid material features the combined advantages of the europium complex and the titania host, exhibiting not only good thermostability, but also long luminescence lifetime. Owing to the excellent luminescence of this material, the application in detecting organic small molecule solvents and metal ions was explored systematically. Significantly, Eu(tta)(3)NCP-TiO2 exhibits superior detection for nitrobenzene molecule and Cu2+ ion in DMF (N,N-dimethylformamide) medium. Furthermore, the limit of detection (LOD) of Eu(tta)(3)NCP-TiO2 for nitrobenzene and Cu2+ ion can be counted as 5.593 x 10(-5) and 9.566 x 10(-5) mol/L, respectively. The results demonstrate that Eu(tta)(3)NCP-TiO2 can serve as an efficient fluorescence probe for the detection of sensing of nitrobenzene and Cu2+ ion. (C) 2020 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.
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