Hybrid materials of SBA-16 functionalized by rare earth (Eu{sup 3+}, Tb{sup 3+}) complexes of modified beta-diketone (TTA and DBM): Covalently bonding assembly and photophysical properties

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Journal of Solid State Chemistry

OSTI ID:21372565

Yajuan, Li ^[1]; Ying, Li ^[1]

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1. Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092 (China)

Novel mesoporous SBA-16 type of hybrids TTA-S16 and DBM-S16 were synthesized by co-condensation of modified beta-diketone (TTA-Si and DBM-Si, DBM=1,3-diphenyl-1,3- propanepione, TTA=2-thenoyltrifluoroacetone) and tetraethoxysilane (TEOS) in the presence of Pluronic F127 as template, which were confirmed by FTIR, XRD, {sup 29}Si CP-MAS NMR, and N{sub 2} adsorption measurements. Novel organic-inorganic mesoporous luminescent hybrid containing RE{sup 3+} (Eu{sup 3+}, Tb{sup 3+}) complexes covalently attached to the functionalized ordered mesoporous SBA-16 (TTA-S16 and DBM-S16), which were designated as bpy-RE-TTA-S16 and bpy-RE-DBM-S16, were obtained by sol-gel process. The luminescence properties of these resulting materials were characterized in detail, and the results reveal that mesoporous hybrid material bpy-Eu-TTA-S16 present stronger luminescent intensities, longer lifetimes, and higher luminescent quantum efficiencies than the corresponding DBM-containing materials bpy-Eu-DBM-S16, while bpy-Tb-DBM-S16 exhibit the stronger characteristic emission of Tb{sup 3+} and longer lifetime than the corresponding TTA-containing materials bpy-Tb-TTA-S16. - Graphical abstract: Novel organic-inorganic mesoporous luminescent hybrids containing RE{sup 3+} complex covalently attached to the beta-diketone-functionalized ordered mesoporous SBA-16, which were designated as bpy-RE-TTA-S16 and bpy-RE-DBM-S16, were obtained by sol-gel process.

• OSTI ID: 21372565
• Journal Information: Journal of Solid State Chemistry, Vol. 183, Issue 4; Other Information: DOI: 10.1016/j.jssc.2010.02.006; PII: S0022-4596(10)00051-4; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
EUROPIUM COMPLEXES
EUROPIUM IONS
INFRARED SPECTRA
LUMINESCENCE
NANOSTRUCTURES
NMR SPECTRA
SOL-GEL PROCESS
TERBIUM COMPLEXES
TERBIUM IONS
TTA
X-RAY DIFFRACTION
CHARGED PARTICLES
COHERENT SCATTERING
COMPLEXES
DIFFRACTION
EMISSION
HETEROCYCLIC COMPOUNDS
IONS
KETONES
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHOTON EMISSION
RARE EARTH COMPLEXES
SCATTERING
SPECTRA