Fenton Oxidation of Methyl Violet in Aqueous Solution
In this study, oxidative discoloration of methyl violet (MV) dye in aqueous solution has been studied using Fenton (Fe2+/H2O2) process. The parameters such as concentration of Fe2+, H2O2, MV, temperature, and Cl− and ions that affected of discoloration in Fenton process were investigated. The rate...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/509097 |
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| author | Saeedeh Hashemian Masoumah Tabatabaee Margan Gafari |
| author_facet | Saeedeh Hashemian Masoumah Tabatabaee Margan Gafari |
| author_sort | Saeedeh Hashemian |
| collection | DOAJ |
| description | In this study, oxidative discoloration of methyl violet (MV) dye in aqueous solution has been studied using Fenton (Fe2+/H2O2) process. The parameters such as concentration of Fe2+, H2O2, MV, temperature, and Cl− and ions that affected of discoloration in Fenton process were investigated. The rate of degradation is dependent on initial concentration of Fe2+ ion, initial concentration of H2O2, and pH of media. Discoloration of MV was increased by increasing the temperature of reaction. Optimized condition was determined and it was found that the obtained efficiency was about 95.5% after 15 minutes of reaction at pH 3. TOC of dye sample, before and after the oxidation process, was determined. TOC removal indicates partial and significant mineralization of MV dye. The results of experiments showed that degradation of MV dye in Fenton oxidation can be described with a pseudo-irst-order kinetic model. The thermodynamic constants of the Fenton oxidation process were evaluated. The results implied that the oxidation process was feasible, spontaneous, and endothermic. |
| format | Article |
| id | doaj-art-2aa7adb91546442580f131da9b5e2a01 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-2aa7adb91546442580f131da9b5e2a012025-08-20T03:54:42ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/509097509097Fenton Oxidation of Methyl Violet in Aqueous SolutionSaeedeh Hashemian0Masoumah Tabatabaee1Margan Gafari2Chemistry Department, Islamic Azad University, Yazd Branch, P.O. Box 89195/155, Yazd, IranChemistry Department, Islamic Azad University, Yazd Branch, P.O. Box 89195/155, Yazd, IranChemistry Department, Islamic Azad University, Yazd Branch, P.O. Box 89195/155, Yazd, IranIn this study, oxidative discoloration of methyl violet (MV) dye in aqueous solution has been studied using Fenton (Fe2+/H2O2) process. The parameters such as concentration of Fe2+, H2O2, MV, temperature, and Cl− and ions that affected of discoloration in Fenton process were investigated. The rate of degradation is dependent on initial concentration of Fe2+ ion, initial concentration of H2O2, and pH of media. Discoloration of MV was increased by increasing the temperature of reaction. Optimized condition was determined and it was found that the obtained efficiency was about 95.5% after 15 minutes of reaction at pH 3. TOC of dye sample, before and after the oxidation process, was determined. TOC removal indicates partial and significant mineralization of MV dye. The results of experiments showed that degradation of MV dye in Fenton oxidation can be described with a pseudo-irst-order kinetic model. The thermodynamic constants of the Fenton oxidation process were evaluated. The results implied that the oxidation process was feasible, spontaneous, and endothermic.http://dx.doi.org/10.1155/2013/509097 |
| spellingShingle | Saeedeh Hashemian Masoumah Tabatabaee Margan Gafari Fenton Oxidation of Methyl Violet in Aqueous Solution Journal of Chemistry |
| title | Fenton Oxidation of Methyl Violet in Aqueous Solution |
| title_full | Fenton Oxidation of Methyl Violet in Aqueous Solution |
| title_fullStr | Fenton Oxidation of Methyl Violet in Aqueous Solution |
| title_full_unstemmed | Fenton Oxidation of Methyl Violet in Aqueous Solution |
| title_short | Fenton Oxidation of Methyl Violet in Aqueous Solution |
| title_sort | fenton oxidation of methyl violet in aqueous solution |
| url | http://dx.doi.org/10.1155/2013/509097 |
| work_keys_str_mv | AT saeedehhashemian fentonoxidationofmethylvioletinaqueoussolution AT masoumahtabatabaee fentonoxidationofmethylvioletinaqueoussolution AT margangafari fentonoxidationofmethylvioletinaqueoussolution |