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

作者：Li Ya Juan^*; Yu Xudong; Wang Xiaojing; Yang Minli

来源：Journal of Materials Research, 2014, 29(5): 675-683.

DOI：10.1557/jmr.2014.33

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)(3)phen, Ln = Eu, Tb; phen = 1,10-phenanthroline] were characterized by Fourier transform infrared, small-angle powder x-ray diffraction, N-2 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)(3)phen and Tb(HFAASi-SBA-15)(3)phen 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.

• 出版日期2014-3-14
• 单位河北科技大学