Abstract—In this paper, the electro-Fenton (EF) process was used for Degradation of a monoazo dye, Reactive Red 195 (RR195). Hydrogen peroxide was electro-generated by reduction of dissolved oxygen in acidic solution. EF process allows the production of active intermediates, which react with the organic compounds leading to their mineralization. In the electrochemical cell carbon paper (CP) was used as cathode and a Pt sheet was used as anode. The experiments were conducted at room temperature in an open, undivided and cylindrical glass cell of 500 mL capacity. H
2 O
2 was continuously generated from the two-electron reduction of O
2 at cathode electrode while Fe
3+ was added to the solution. The effect of operational parameters such as applied current, initial pH and reaction time was studied in an attempt to reach the higher dye removal efficiency. The degradation of RR195 was followed by total organic carbon (TOC) analysis. The results of TOC measurements indicated that electro-Fenton with carbon paper allowed 75% degradation after 240 min of electrolysis.
Index Terms—Reactive red 195, electro-Fenton, carbon paper, dye removal.
Nader Djafarzadeh is with the Department of Chemistry, Faculty of Science, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran (e-mail: n.jafarzadeh@gmail.com).
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Cite: Nader Djafarzadeh, "Mineralization of an Azo Dye Reactive Red 195 by Advanced Electrochemical Electro-Fenton Process," International Journal of Chemical Engineering and Applications vol. 7, no. 4, pp. 217-220, 2016.
