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环境化学  2015 

染料化合物光催化氧化降解中氮元素行为分析

Keywords: 含氮类染料化合物,TiO2光催化氧化,降解机理

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Abstract:

在含氮染料化合物的降解过程中,不同结构氮的降解过程是不同的,其中偶氮结构与非偶氮结构存在很大差别。实验中发现,在相同的TiO2/UV条件下光解,非偶氮结构染料的降解体系很快有NH4+离子和NO3-离子产生,而在偶氮结构染料的降解产物中却没有二者生成。并通过实验证明,体系中产生的NH4+是染料降解的中间产物,而NO3-则至少有两条生成途径。

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