Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro, de Alba s/n, Cd. Universitaria, San Nicol´as de los Garza, NL. C.P.66400, Mexico.
Photochem Photobiol Sci. 2011 Mar 2;10(3):332-7. doi: 10.1039/c0pp00158a. Epub 2010 Aug 4.
The degradation of a model mixture composed of Acid Yellow 36 (AY36) and Methyl Orange (MO) azo dyes was performed using the photo-Fenton process (PFP). The performance of this process conducted under artificial UV light (365 nm) was compared with the Fenton reaction. Some important operating parameters that affect the degradation of azo dyes, such as initial Fe(2+) and H(2)O(2) concentrations and the presence or absence of chloride ions, were investigated. Decolorisation of the dye mixture sample was achieved in 70 min with the photo-Fenton reaction, while the complete mineralization evaluated by TOC abatement was completed in 180 min. These results provide important knowledge for the treatment of wastewater containing azo dye mixtures by Fenton and photo-Fenton oxidation processes.
采用光芬顿法（PFP）对由酸性黄 36（AY36）和甲基橙（MO）偶氮染料组成的模型混合物进行降解。比较了在人工紫外光（365nm）下进行的该过程与芬顿反应的性能。研究了一些重要的操作参数，如初始 Fe(2+)和 H(2)O(2)浓度以及是否存在氯离子，这些参数会影响偶氮染料的降解。在光芬顿反应中，染料混合物样品在 70 分钟内实现脱色，而通过 TOC 去除评估的完全矿化则在 180 分钟内完成。这些结果为通过芬顿和光芬顿氧化法处理含有偶氮染料混合物的废水提供了重要的知识。
