Novel degradation mechanism for triarylmethane dyes: Acceleration of degradation speed by the attack of active oxygen to halogen groups
Novel degradation mechanism for triarylmethane dyes: Acceleration of degradation speed by the attack of active oxygen to halogen groups
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DOI：
10.1016/j.dyepig.2015.09.006
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发表时间：
2016
影响因子：
4.5
通讯作者：
S. Nakagawa;K. Sakakibara;H. Gotoh
中科院分区：
文献类型：
--
作者：
S. Nakagawa;K. Sakakibara;H. Gotoh
我们使用LC/MS和UV/维斯光谱法研究了三芳基甲烷染料，并证明它们根据其化学结构经历几种降解机制，从而导致特定的降解速率和颜色褪色。特别地，我们发现碱性蓝1（BB 1）显示出显著快速的脱色。我们提出了一个新的具体的降解机制BB 1产生的光生·OH自由基从空气中的氧气。
We studied triarylmethane dyes using LC/MS and UV/VIS spectrometry and demonstrated that they undergo several degradation mechanisms depending on their chemical structures, thus leading to specific degradation rates and colour fading. In particular, we found that Basic Blue 1 (BB1) shows significantly fast decolourization. We suggest a new specific degradation mechanism for BB1 that arises from photogenerated ·OH radicals from oxygen in air.