期刊
DALTON TRANSACTIONS
卷 39, 期 32, 页码 7485-7492出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0dt00050g
关键词
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资金
- National Natural Science Foundation of China [20931003]
- program for New Century Excellent Talents in University [NCET-06-0902]
Novel organic-inorganic luminescent mesoporous hybrid materials were assembled through the coordination reaction between europium nitrate with chelated quinoline-amide type ligands immobilized in mesoporous materials (MCM-41 and SBA-15) The mesoporous hybrid materials were characterized by elemental analysis. Fourier-transform infrared spectra, powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), and nitrogen (N-2) adsorption-desorption The results demonstrated that the highly ordered mesoporous structures were retained after the complexes covalently bonded to the channels of the matrices The SBA-15-type hybrid materials, with pore sizes twice that of MCM-41, display more efficient emission due to the spatial confinement of the nanochannels of the mesoporous matrix This deduction is strengthened by the fact that the influences are more obvious for complexes including rigid end group ligands In addition, the Eu3+ complexes coordinated with ligands containing rigid end groups in MCM-41 matrices exhibit better photoluminescence stability upon exposure to ultraviolet light
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