Feng Jing, Fan Wei-Qiang, Song Shu-Yan, Yu Ying-Ning, Deng Rui-Ping, Zhang Hong-Jie
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Jilin, China.
Dalton Trans. 2010 Jun 7;39(21):5166-71. doi: 10.1039/b924061f.
A novel multifunctional nanocomposite has been developed by combining the magnetic (Fe3O4) cores encapsulated in the mesoporous silica nanospheres and the luminescent Eu(TTA)3phen complex covalently bonded to the framework of mesoporous silica through a chelate ligand 5-[N,N-bis-3-(triethoxysilyl)propyl]ureyl-1,10-phenanthroline (phen-Si). The obtained nanocomposite is denoted as Eu(TTA)3phen-MMS. It has been well characterized by field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), N2 adsorption/desorption, Quantum Design SQUID magnetometer and photoluminescence spectroscopy, respectively. The results demonstrated that Eu(TTA)3phen-MMS nanocomposite possess superparamagnetic behavior, intense red emission and mesostructures simultaneously.
通过将包裹在介孔二氧化硅纳米球中的磁性（Fe3O4）核与通过螯合配体5-[N，N-双-3-（三乙氧基硅基）丙基]脲基-1，10-菲咯啉（phen-Si）共价键合到介孔二氧化硅骨架上的发光Eu（TTA）3phen配合物相结合，开发了一种新型多功能纳米复合材料。所得纳米复合材料记为Eu（TTA）3phen-MMS。分别通过场发射扫描电子显微镜（FE-SEM）、透射电子显微镜（TEM）、傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）、N2吸附/脱附、量子设计超导量子干涉仪磁强计和光致发光光谱对其进行了充分表征。结果表明，Eu（TTA）3phen-MMS纳米复合材料同时具有超顺磁行为、强烈的红色发射和介观结构。
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