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J Fluoresc. 2008 Sep;18(5):763-9. doi: 10.1007/s10895-007-0306-x. Epub 2008 Jan 5.

Molecular design and fluorescent whitening emission from novel lanthanide activated organic-inorganic covalently hybrid micro-particles.

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  • 1Department of Chemistry, Tongji University, Shanghai, 200092, People's Republic of China.


A series of potential lanthanide activated fluorescent-whitening hybrid micro-particles has been prepared by sol-gel method. The precursor derived from 2,2'-dipyridylamine derivative modified though hydrogen transfer addition exhibited a self-organization under the coordination to RE(3+) (Eu(3+), Tb(3+), Sm(3+), Dy(3+), respectively) evaluated by SEM (micrometric scale) and X-ray diffraction studies (nanometric scale). The adapting traditional routes used in this paper affected the shape of the materials and can be taken as a new method to control the hydrolysis-polycondensation process. Fourier transform infrared (FTIR), Diffuse reflectance ultraviolet-visible spectra (DRUVS) and (1)H NMR spectra were used to confirm the modifications. These activated phosphors with lanthanide ions represent a novel way to produce fluorescent whitening agents.

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