Comparative efficiencies of the decolourisation of Methylene Blue using Fenton’s and photo-Fenton’s reactions
The decolourisation and mineralization of Methylene Blue azo dye (MB) under Fenton’s and photo-Fenton’s conditions have been studied. Some parameters, such as initial concentrations of iron (Fe2+) and fixed hydrogen peroxide (H2O2), were evaluated to find the optimal conditions for the efficient deg...
| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | Spanish / Castilian |
| Publicado: |
Royal Society of Chemistry
2009
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| Acceso en línea: | http://eprints.uanl.mx/26446/8/26446.pdf |
| Sumario: | The decolourisation and mineralization of Methylene Blue azo dye (MB) under Fenton’s and photo-Fenton’s conditions have been studied. Some parameters, such as initial concentrations of iron (Fe2+) and fixed hydrogen peroxide (H2O2), were evaluated to find the optimal conditions for the efficient degradation of azo dye. The experimental assays showed better efficiency for the photo-Fenton’s system. Pseudo-first order degradation rate constants were obtained from batch experimental set up. It is suggested that photo-Fenton’s reactions are viable processes for treatment of azo dye MB, according to the high levels of colour (UV665) and total organic carbon (TOC) removal. |
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