Issue 5, 2009
From the journal:

Photochemical & Photobiological Sciences

Comparative efficiencies of the decolourisation of Methylene Blue using Fenton’s and photo-Fenton's reactions†

D. Melgoza,a   A. Hernández-Ramíreza  and  J. M. Peralta-Hernández*a  

* Corresponding authors

a Universidad Autónoma de Nuevo León, Av. Universidad s/n. Cd. Universitaria, San Niclolás de los Garza, NL, México
E-mail: jperalta@fcq.uanl.mx
Fax: +52 8183529025
Tel: +52 8183294000 ext. 6288

Abstract

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.

Graphical abstract: Comparative efficiencies of the decolourisation of Methylene Blue using Fenton’s and photo-Fenton's reactions

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Article information

DOI
https://doi.org/10.1039/B817287K
Article type
Paper
Submitted
02 Oct 2008
Accepted
12 Dec 2008
First published
23 Jan 2009

Photochem. Photobiol. Sci., 2009,8, 596-599

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Comparative efficiencies of the decolourisation of Methylene Blue using Fenton’s and photo-Fenton's reactions

D. Melgoza, A. Hernández-Ramírez and J. M. Peralta-Hernández, Photochem. Photobiol. Sci., 2009, 8, 596 DOI: 10.1039/B817287K

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