Peng Chunyun, Zhang Hongjie, Liu Fengwei, Meng Qinguo Fu Lianshe, Sun Lining, Guo Junfang, Yu Jiangbo (Key Lab of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China)
<正> Novel hybrid materials containing covalently bonded Terbium-benzoic acid complex in mesoporous silica SBA-15 (denoted as Tb-SBA-15) were prepared via co-condensation of tetrethoxysilane (TEOS) and N-(4-benzoic acid-yl), N'-(propyltriethoxysilyl) urea (denoted as PABI). XRD, FTIR and luminescence spectroscopy were employed to characterize Tb-SBA-15. When monitored by the ligand absorption wavelength (270 nm), Tb-SBA-15 displays the emission of Tb3+(5D4→Fj(j= 6,5,4,3) transition) due to the energy transfer from the ligands to Tb3+.
SBA-15; covalently bonded; terbium complex; rare earths
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