Novel ordered mesoporous Eu(DBM)3phen/APTES-SBA-15 (EAS) composites with reasonable photoluminescence property and interesting morphology of bundles of pearl-like chains were synthesized. The characteristics of the me...Novel ordered mesoporous Eu(DBM)3phen/APTES-SBA-15 (EAS) composites with reasonable photoluminescence property and interesting morphology of bundles of pearl-like chains were synthesized. The characteristics of the mesostructure and the optical properties of the prepared samples were investigated by means of XRD, FTIR, SEM, TEM, N2 adsorption–desorption and PL spectroscopy. The results indicate that the as-made EAS composites have long-distance ordered mesoporous structure. Compared with the Eu(DBM)3phen complex, it is found that the EAS composites perform a considerable photoluminescence with good color purity. It is proposed that the anchored amine from the APTES and quantum size effect of the Eu(DBM)3phen complex have great effect on the photoluminescence of the EAS composites.展开更多
Eu(DBM) 3·H 2O nanocrystallites were obtained by the chemical precipitation method.By the elemental analyzer,infrared spectrum,TGA-DSC and TEM,that the construction of nanocrystallines,the thermal properties and ...Eu(DBM) 3·H 2O nanocrystallites were obtained by the chemical precipitation method.By the elemental analyzer,infrared spectrum,TGA-DSC and TEM,that the construction of nanocrystallines,the thermal properties and size were confirmed,in addition,fluorescence excitation and emission spectrum,ultraviolet absorption spectrums were investigation.Then the nanocrystallines were incorporated into the copolymer system of styrene and methyl acrylic acid,the fluorescence functional polymer nanometer material with high lanthanide content (50、wt%) were obtained.The experiment indicated that Eu(DBM) 3·H 2O nanocrystallines particle sizes were in 30～300、nm,it exhibited europium ion charlatanistic luminescence.The optical resins could provide a relatively stable environment for Eu(DBM) 3·H 2O nanocrystallines.展开更多
基金Project (SYSJJ2003-15) supported by the Opening Foundation of the Key Laboratory of the Ministry of Education of China
文摘Novel ordered mesoporous Eu(DBM)3phen/APTES-SBA-15 (EAS) composites with reasonable photoluminescence property and interesting morphology of bundles of pearl-like chains were synthesized. The characteristics of the mesostructure and the optical properties of the prepared samples were investigated by means of XRD, FTIR, SEM, TEM, N2 adsorption–desorption and PL spectroscopy. The results indicate that the as-made EAS composites have long-distance ordered mesoporous structure. Compared with the Eu(DBM)3phen complex, it is found that the EAS composites perform a considerable photoluminescence with good color purity. It is proposed that the anchored amine from the APTES and quantum size effect of the Eu(DBM)3phen complex have great effect on the photoluminescence of the EAS composites.
文摘Eu(DBM) 3·H 2O nanocrystallites were obtained by the chemical precipitation method.By the elemental analyzer,infrared spectrum,TGA-DSC and TEM,that the construction of nanocrystallines,the thermal properties and size were confirmed,in addition,fluorescence excitation and emission spectrum,ultraviolet absorption spectrums were investigation.Then the nanocrystallines were incorporated into the copolymer system of styrene and methyl acrylic acid,the fluorescence functional polymer nanometer material with high lanthanide content (50、wt%) were obtained.The experiment indicated that Eu(DBM) 3·H 2O nanocrystallines particle sizes were in 30～300、nm,it exhibited europium ion charlatanistic luminescence.The optical resins could provide a relatively stable environment for Eu(DBM) 3·H 2O nanocrystallines.
