Oxidative decomposition of Acid Brown 159 dye in aqueous solution by H₂O₂/Fe²⁺ and ozone with GC/MS analysis

详细信息	查看全文 | 推荐本文 |

• 作者：Wojciech K. Jó ; ź ; wiak ; Magdalena Mitros ; Joanna Kał ; uż ; na-Czapliń ; ska ; Ryszard Tosik
• 关键词：Fenton process ; Ozonation ; Metal-complex azo dye ; Oxidation ; Decolorization ; Decomposition
• 刊名：Dyes and Pigments
• 出版年：2007
• 期刊代码：31_01437208
• 类别：ms
• 出版时间：2007
• 卷：74
• 期：1
• 页码：9-16
• 文件大小：356 K

摘要

The oxidative degradation of metal-complex Co(II) Acid Brown 159 in aqueous solution by H₂O₂/Fe²⁺ and ozone was investigated. Optimal conditions for decolorization and total decomposition processes were found for dye oxidation during H₂O₂/Fe²⁺ and ozone treatments. The full 100%decolorization is attained during first minutes of H₂O₂/Fe²⁺ and ozone oxidation processes. The complete mineralization of aqueous solutions of Acid Brown 159 dye cannot be achieved even under the optimal reaction conditions. Fenton's process appeared to be more effective in comparison with ozonation. A tentative mechanistic pathway for the oxidative degradation of Acid Brown 159 dye in aqueous solution was postulated.