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wypward(金币+1):谢谢参与 2010-10-11 11:52:39
海之帆(金币+50, 翻译EPI+1): 2010-10-13 09:39:21
真难
The Ce-doped TiO2, its visible light photocatalytic activity can be improved significantly, and the photocatalytic good stability. The photocatalytic degradation process, the adsorption of • OH degradation of Rhodamine B plays the most important role.The optimum doping amount is 3.0% (mol%).Sol - Ce/TiO2 hydrothermal synthesis of anatase crystal form to the main grain size smaller than the diameter of undoped, suggesting that Ce doping effectively inhibits the growth of nanocrystals.UV-visible absorption spectra show that, Ce doping can promote the absorption spectra of TiO2 red shift.Ce doping fluorescence spectra showed lower recombination rate of photogenerated charge. |
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