Hexagonal mesoporous fluorescent hybrid materials with electron acceptor viologen units in the framework
作者： Aifeng Liu , Hongwei Che , Ruijiao Jiang
DOI: 10.1007/S10934-012-9630-X
关键词:
摘要: Mesoporous MCM-41-type fluorescent hybrid materials with methylene viologen units in the framework have been synthesized via co-hydrolysis and -condensation of dichloride N,N′-bis(triethoxysilylmethyl)-4,4′-bipyridinium (VP) tetraethoxysilane (TEOS). The obtained are characterized by small-angle X-ray diffraction (SAXRD), high-resolution transmission electron microscope (HR-TEM), Fourier transform infrared spectrometer (FTIR), solid-state 29Si NMR spectrum, nitrogen adsorption/desorption analyse, diffuse reflectance UV–VIS (DR UV-Vis), confocal laser scanning fluorescence microscopy (CLSFM). results show that VP covalently bonded into silica to form mesoporous materials. hexagonal found emit at ca.380 nm 420 nm. intensity enhances increasing amount occupied framework, it is not affected or cubic array pore channels. It could be prospected such would present great potential applications drug delivery probing for medical diagnosis synchronous therapy.
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