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Inicio Science and Tecnology of Materials Experimental evaluation of Reactive Yellow 17 degradation using UV light and iro...
Journal Information
Vol. 30. Issue 3.
Pages 157-165 (September - December 2018)
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Vol. 30. Issue 3.
Pages 157-165 (September - December 2018)
Original article
DOI: 10.1016/j.stmat.2018.07.002
Experimental evaluation of Reactive Yellow 17 degradation using UV light and iron ions activated peroxydisulfate: Efficiency and kinetic model
N. Bougdour
Corresponding author

Corresponding author.
, A. Sennaoui, I. Bakas, A. Assabbane
Laboratory of Electrochemistry, Team Catalysis and Environment, Faculty of Science, Ibn Zohr University, Agadir, Morocco
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Figures (7)
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Tables (7)
Table 1. Influence of the Fe2+ concentration on the degradation of RY17 using the S2O82−/Fe2+ process, [S2O82−] = 0.1 mM.
Table 2. The parameter of BMG kinetic model of the degradation of RY 17at different S2O82−concentrations by: (a) S2O82−/UV and (b) S2O82−/Fe2+.
Table 3. Linear forms equations of the first-order, second-order and BMG reaction kinetics.
Table 4. The parameters of kinetic models for degradation of RY17.
Table 5. Mineralization of RY17.
Table 6. Comparison of the degradation efficiency (%) of RY17 between Na2S2O8 and K2S2O8.
Table 7. Summary of the degradation processes applied in treatment of RY 17.
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In the present study, the degradation of Reactive Yellow 17 (RY17) azo dye in aqueous solution was performed using UV light and iron ions as activators of peroxydisulfate (S2O82− or PDS). The effect of several parameters affecting the degradation process was studied and the optimum conditions are found to be: [RY17] = 10 mg/L, [Fe2+] = 0.05 mM, [S2O82−] = 1 mM and the pH = 3. The obtained results showed that the removal degrees of RY17 using different processes such as S2O82−/Fe2+, S2O82−/UV and S2O82−/Fe2+/UV was 63.3%, 81.0% and 95.4% respectively within 20 min of the degradation. Based on theses removal degrees, the degradation efficiency of the RY17 increases in the order: S2O82−/Fe2+/UV > S2O82−/UV > S2O82−/Fe2+ > UV > S2O82−. The experimental data were analyzed using the first-order, second-order and Behnajady-Modirshahla-Ghanbery (BMG) kinetic models, and the kinetic data were in good agreement with the BMG model. Under the optimal conditions, the comparative study of the RY17 degradation using two salts Na2S2O8 and K2S2O8 showed a strong similarity. The total mineralization was monitored using COD and TOC techniques. The results showed that the peroxydisulfate activated by UV and Fe2+/UV system is efficient for the degradation and mineralization of RY17; it could also be an alternative for the treatment of the real wastewater contaminated by azo dyes.

Azo dye
Reactive Yellow 17
Iron ions


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