Premium
Photophysical Properties of Eu(III) Center Covalently Immobilized in Si‐O‐B and Si‐O‐Ti Composite Gels
Author(s) -
Yan Bing,
Wang Chang,
Guo Lei,
Liu JinLiang
Publication year - 2010
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.2010.00713.x
Subject(s) - covalent bond , composite number , monomer , silicon , materials science , chemistry , hybrid material , chemical engineering , quantum dot , methyl orange , polymer chemistry , nanotechnology , catalysis , polymer , organic chemistry , composite material , photocatalysis , engineering
In this paper, the functionalized monomer (TFAASi) behaves as a linkage to be immobilized into inorganic composite host gels through covalent bonds. Subsequently two kinds of Eu‐centered chemically bonded hybrid gels (Eu‐TFAA‐Si‐O‐Ti, Eu‐TFAA‐Si‐O‐B) with composite hosts have been prepared and characterized. The covalently bonded Si‐O‐B hybrid gel presents stronger red/orange intensity ratio, longer lifetimes and higher quantum efficiency than covalently bonded Si‐O‐Ti one, suggesting that SiO 2 ‐B 2 O 3 composite gel is more suitable for the emissions of Eu 3+ than SiO 2 ‐TiO 2 composite gels.