Recent research progresses on photofading of azo dyes at home and abroad was introduced, and the photofading mechanisms at azobond 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 cleavage of the azobond is the limited step of the mineralization processes because of the low oxidation-reduction potentials and complex structure.