Fenton degradation of organic compounds promoted by dyes under visible irradiation
Fenton degradation of organic compounds promoted by dyes under visible irradiation
复制标题
可见光照射下染料促进有机化合物的芬顿降解
DOI：
10.1021/es050001x
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发表时间：
2005-08-01
影响因子：
11.4
通讯作者：
Tang, YL
中科院分区：
文献类型：
--
作者：
Ma, JH;Song, WJ;Tang, YL
The influence of dyes on the Fenton reaction of organic compounds under visible irradiation (lambda > 450 nm) was examined. It was found that the presence of dyes could accelerate greatly the Fenton reaction of organic compounds such as salicylic acid, sodium benzenesulfonate, benzyl-trimethylammonium chloride, and trichloroacetic acid under visible irradiation and that a complete mineralization of those compounds could also be achieved. The dyes such as Alizarin Violet 3B which has an anthraquinone structure unit showed much more significant effect on the reaction than the dyes such as malachite green without the quinone unit. A reaction mechanism of dye AV as a cocatalyst in the photo-Fenton reaction of organic compounds under visible irradiation is proposed based on the cycle of Fe3+/Fe2+ catalyzed by quinone species and an electron transfer from the excited dye molecule to Fe3+.
