A. Khataee, M. Zarei, A. Khataee
May 1, 2011
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Influential Citations
39
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Journal
Clean-soil Air Water
Abstract
Decolorization of C.I. Basic Blue 3 (BB3) by oxalate catalyzed photoelectro-Fenton process based on carbon nanotube-polytetrafluoroethylene (CNT-PTFE) electrode as cathode under visible light was studied. A comparison of electro-Fenton, photoelectro-Fenton, and photoelectro-Fenton/oxalate processes for decolorization of the solution containing BB3 has been performed. The results showed that color removal follows the decreasing order: photoelectro-Fenton/oxalate > photoelectro-Fenton > electro-Fenton. Response surface methodology (RSM) was employed to assess individual and interactive effects of the four main independent parameters on the decolorization efficiency. A central composite design (CCD) was employed for optimization of photo-electro-Fenton/oxalate treatment of BB3. The analysis of variance (ANOVA) showed a high coefficient of determination value (R 2 = 0.958) and satisfactory prediction second-order regression. This study clearly showed that RSM was one of the suitable methods to optimize the operating conditions.