Preparation and luminescent properties of lanthanide (Eu3+ and Tb3+) complexes grafted to 3-aminopropyltriethoxysilane by covalent bonds |
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| Affiliation: | 1. Jiangsu Province Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, People''s Republic of China;2. Huaian Key Laboratory of Functional Materials for Informatics, School of Physics and Electronic Electrical Engineering, Huaiyin Normal University, Huaian 223300, People''s Republic of China;1. Jiangsu Province Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huaian 223300, People''s Republic of China;2. School of Physics and Electronic Electrical Engineering, Huaiyin Normal University, Huaian 223300, People''s Republic of China |
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| Abstract: | A novel precursor PMA–Si was synthesized by modifying 1,2,4,5-benzene-tetracarboxylic acid (PMA) with 3-aminopropyltriethoxysilane (APTES). Then the hybrids were prepared by PMA–Si coordinating to lanthanide ions (Eu3+ and Tb3+) in sol–gel process. In order to improve luminescent efficiency, 1,10-Phenanthroline (Phen) was introduced to the system as the second ligand. As-prepared compounds in sol condition were coated on quartz plates to form a layer of thin film, which was different from other similar hybrids. The properties of the hybrids were characterized by FT-IR, fluorescence spectra, TG and SEM. The results showed that the obtained materials enhanced thermal stability, mechanical resistances, waterproofness as well as machining properties. |
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| Keywords: | Rare earth Aromatic carboxylic acid complexes Bridged polysilsesquioxanes Sol–gel approach |
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