Luminescent Hybrids of Eu³⁺ Complexes Covalently Bonded with Mesoporous Silica and PMAA

Abstract:

Binary organic-inorganic mesoporous hybrid materials were prepared by covalntly grafting Lanthanide (III) (Eu) trifluoroacetylaceton (TAA) complexes to the ordered meosoporous silica SBA-15 via hydrothermal method and hydrolysis and co-polycondensation method with the surfactant P123 and TEOS. Besides, Novel ternary lanthanide (III) (Eu) organic-inorganic-polymeric mesoporous hybrid materials have been synthesized as well through the introduction of the organic polymer PMAA to the binary system with covalent bond. We investigated the thermal stability and luminescence properties of hybrids and found that the ternary hybrid materials exhibit better thermal stability and stronger emission intensity. Furthermore, compared with the binary mesoporous material Eu (TAA-SBA-15)₃, the ternary mesoporous material Eu (TAA-SBA-15)₃PMMA exhibits the characteristic emission of the Eu³⁺ ion with a higher luminescence Intensity, suggesting that the introduction of polymer PMMA into the mesoporous matrix is of benefit for the sensitization of Eu³⁺ luminescence, by replacing H₂O groups that can quench the luminescence of Eu³⁺ ion.

• Periodical: Advanced Materials Research (Volume 749)
• Pages: 82-86
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.749.82
• Online since: August 2013
• Authors: Ying Li, Jie Lin Wang, Wei Chain, Xia Wang, Hua Ti Li, Shuang He Liu
• Keywords: Luminescence, Mesoporous, Organic-Inorganic-Polymeric, Polymer

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