Novel luminescent lanthanide(iii) hybrid materials: fluorescence sensing of fluoride ions and N,N-dimethylformamide†,Dalton Transactions

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Novel luminescent lanthanide(iii) hybrid materials: fluorescence sensing of fluoride ions and N,N-dimethylformamide†
Dalton Transactions ( IF 3.5 ) Pub Date : 2018-07-30 00:00:00 , DOI: 10.1039/c8dt02404a
Xuelei Pang _{1,

2,

3,

4,

5} , Li Li _{1,

2,

3,

4,

5} , Yi Wei _{1,

2,

3,

4,

5} , Xudong Yu _{1,

2,

3,

4,

5} , Yajuan Li _{1,

2,

3,

4,

5}

Affiliation

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.

中文翻译：

新型发光镧系元素（iii）杂化材料：氟离子和N，N-二甲基甲酰胺的荧光传感†

设计并合成了两种新颖的发光有机-无机杂化材料Ln（L-SBA15）₃ phen（Ln = Eu，Tb）。有机配体苯基脲被硅烷偶联剂3-（三乙氧基甲硅烷基）丙基异氰酸酯（TESPIC）改性以形成前体（L），该前体共价键合到介孔SBA-15主链上，通过共水解形成介孔L-SBA15和共缩合反应。选择1,10-菲咯啉一水合物（phen）作为第二种配体以提高最终产物的发光度，并且在有机配体（phen）之间的配位反应后获得了两种介孔杂化材料Ln（L-SBA15）₃ phen和L-SBA15）和Ln（III）离子。两种介孔杂化材料都通过傅里叶变换红外光谱，透射电子显微镜，小角X射线衍射，N ₂吸附-解吸曲线和光致发光光谱进行了检查。结果表明，两种杂化材料均显示出高度有序的介孔结构，高表面积和出色的光物理性质（长发光寿命和高量子效率）。此外，系统地研究了材料的荧光传感特性，发现杂化材料是具有良好的氟离子感测能力和小的有机分子N，N-二甲基甲酰胺的双功能材料的有前途的例子。

更新日期：2018-07-30

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