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Lanthanide (Eu3+, Tb3+) functionalized SBA-15 through modified hexafluoroacetylacetone linkage: Covalently bonding construction, physical characterization, and luminescent properties

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Abstract

New organic/inorganic mesoporous luminescent hybrid materials containing lanthanide (Eu, Tb) complexes chemically bonded to mesoporous SBA-15 [a kind of mesoporous silica with two-dimensional hexagonal (P6mm) structure] have been successfully synthesized by co-condensation of the modified hexafluoroacetylacetone (HFAASi) and tetraethoxysilane (TEOS) in the presence of Pluronic P123 surfactant as a template. The luminescent properties of these resulting mesoporous hybrid materials [denoted as Ln(HFAASi-SBA-15)3phen, Ln = Eu, Tb; phen = 1,10-phenanthroline] were characterized by Fourier transform infrared, small-angle powder x-ray diffraction, N2 adsorption measurements, transmission electron microscope, ultraviolet-visible diffuse reflection absorption spectra, and photoluminescent spectra, and the results exhibit that they all have uniformity in mesostructure and high surface area. Moreover, the mesoporous hybrid materials Eu(HFAASi-SBA-15)3phen and Tb(HFAASi-SBA-15)3phen exhibit the characteristic luminescence of Eu3+ and Tb3+, respectively, indicating that the effective intramolecular energy transfer between HFAASi and the lanthanide ions has been achieved.

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ACKNOWLEDGMENTS

This work was supported by the Scientific Research Foundation of Hebei Province Education Department (No. Z2013015), the Doctoral Science Foundation of Hebei University of Science and Technology (No. QD201255), and the Xiaoli Foundation of Hebei University of Science and Technology (XL201257 and XL201250).

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  1. College of Science, Hebei University of Science and Technology, Shijiazhuang, 050080, People’s Republic of China

    Ya-Juan Li, Xudong Yu, Xiaojing Wang & Minli Yang

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  1. Ya-Juan Li
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Correspondence to Ya-Juan Li.

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Li, YJ., Yu, X., Wang, X. et al. Lanthanide (Eu3+, Tb3+) functionalized SBA-15 through modified hexafluoroacetylacetone linkage: Covalently bonding construction, physical characterization, and luminescent properties. Journal of Materials Research 29, 675–683 (2014). https://doi.org/10.1557/jmr.2014.33

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