The main study methods and present research conclusions of photofading of organic dyes were reviewed in this paper.

本文介绍了近年来国内外对于偶氮染料光致褪色的研究进展，综述了偶氮染料光褪色与偶氮键断裂机理。

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Recent research progresses on photofading of azo dyes at home and abroad was introduced, and the photofading mechanisms at azo bond were reviewed.

本文介绍了近年来国内外对于偶氮染料光致褪色的研究进展，综述了偶氮染料光褪色与偶氮键断裂机理。

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The transition energies and charge densities of dye molecules are calculated by modify PPP-CI method. The results show that the photofading rates are closely related to the charge densities ons…

用改进的PPP-CI方法计算染料分子的跃迁能和电荷密度，结果表明，茚苯胺染料的光退色速率与染料分子中某些原子上的电荷密度有关，单重态氧可能在光退色过程中起着重要作用。

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