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
- 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, Journal Name: Journal of Solid State Chemistry Journal Issue: 4 Vol. 183; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHARGED PARTICLES
COHERENT SCATTERING
COMPLEXES
DIFFRACTION
EMISSION
EUROPIUM COMPLEXES
EUROPIUM IONS
HETEROCYCLIC COMPOUNDS
INFRARED SPECTRA
IONS
KETONES
LUMINESCENCE
NANOSTRUCTURES
NMR SPECTRA
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHOTON EMISSION
RARE EARTH COMPLEXES
SCATTERING
SOL-GEL PROCESS
SPECTRA
TERBIUM COMPLEXES
TERBIUM IONS
TTA
X-RAY DIFFRACTION