Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of Dyes
The photo-Fenton oxidation process was employed to degrade methylene blue (MB) using a hydroxide sludge/hydrochar-Fe composite as a catalyst prepared by physical activation of raw hydroxide sludge from a drinking water treatment plant and hydrochar-Fe prepared by hydrothermal carbonization from two-...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2021/5588176 |
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| author | Zaina Izghri Ghizlane Enaime Mehdi Eouarrat Lhoussaine Chahid Layla El Gaini Abdelaziz Baçaoui Abdelrani Yaacoubi |
| author_facet | Zaina Izghri Ghizlane Enaime Mehdi Eouarrat Lhoussaine Chahid Layla El Gaini Abdelaziz Baçaoui Abdelrani Yaacoubi |
| author_sort | Zaina Izghri |
| collection | DOAJ |
| description | The photo-Fenton oxidation process was employed to degrade methylene blue (MB) using a hydroxide sludge/hydrochar-Fe composite as a catalyst prepared by physical activation of raw hydroxide sludge from a drinking water treatment plant and hydrochar-Fe prepared by hydrothermal carbonization from two-phase olive mill waste. The prepared composite was characterized by XRD, SEM, EDS, ICP, and FT-IR. The effect of major parameters, including pH, H2O2 concentration, and a dose of composite on the removal of MB has been studied. The results indicated that the MB decolorization rate increased with the increase of H2O2 concentration and catalyst addition; however, further increase in H2O2 concentration and catalyst dosage could not result in an increase of MB removal efficiency. A high degradation of 95% was achieved within 150 min under UV light irradiation at natural pH (pH = 5), a catalyst loading of 2.5 g/L, a H2O2 dosage of 14.68 mol/L, and MB concentration of 50 mg/L. Recycling studies show a MB decolorization of 92% after three cycles and the use of the composite for the degradation of another dye (methyl orange) shows a degradation of 99%, demonstrating that this composite is a promising heterogeneous photo-Fenton catalyst for long-term removal of dyes from industrial wastewater. |
| format | Article |
| id | doaj-art-feb5d70191364617bbc9b80cd07da880 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-feb5d70191364617bbc9b80cd07da8802025-02-03T05:43:46ZengWileyJournal of Chemistry2090-90632090-90712021-01-01202110.1155/2021/55881765588176Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of DyesZaina Izghri0Ghizlane Enaime1Mehdi Eouarrat2Lhoussaine Chahid3Layla El Gaini4Abdelaziz Baçaoui5Abdelrani Yaacoubi6Laboratory of Applied Chemistry and Biomass, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390,40000, Marrakech, MoroccoLaboratory of Applied Chemistry and Biomass, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390,40000, Marrakech, MoroccoLaboratory of Applied Chemistry and Biomass, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390,40000, Marrakech, MoroccoNational Office of Electricity and Drinking Water (ONEE), Av. Mohamed V,40000, Marrakech, MoroccoLaboratory of Applied Chemistry and Biomass, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390,40000, Marrakech, MoroccoLaboratory of Applied Chemistry and Biomass, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390,40000, Marrakech, MoroccoLaboratory of Applied Chemistry and Biomass, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P. 2390,40000, Marrakech, MoroccoThe photo-Fenton oxidation process was employed to degrade methylene blue (MB) using a hydroxide sludge/hydrochar-Fe composite as a catalyst prepared by physical activation of raw hydroxide sludge from a drinking water treatment plant and hydrochar-Fe prepared by hydrothermal carbonization from two-phase olive mill waste. The prepared composite was characterized by XRD, SEM, EDS, ICP, and FT-IR. The effect of major parameters, including pH, H2O2 concentration, and a dose of composite on the removal of MB has been studied. The results indicated that the MB decolorization rate increased with the increase of H2O2 concentration and catalyst addition; however, further increase in H2O2 concentration and catalyst dosage could not result in an increase of MB removal efficiency. A high degradation of 95% was achieved within 150 min under UV light irradiation at natural pH (pH = 5), a catalyst loading of 2.5 g/L, a H2O2 dosage of 14.68 mol/L, and MB concentration of 50 mg/L. Recycling studies show a MB decolorization of 92% after three cycles and the use of the composite for the degradation of another dye (methyl orange) shows a degradation of 99%, demonstrating that this composite is a promising heterogeneous photo-Fenton catalyst for long-term removal of dyes from industrial wastewater.http://dx.doi.org/10.1155/2021/5588176 |
| spellingShingle | Zaina Izghri Ghizlane Enaime Mehdi Eouarrat Lhoussaine Chahid Layla El Gaini Abdelaziz Baçaoui Abdelrani Yaacoubi Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of Dyes Journal of Chemistry |
| title | Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of Dyes |
| title_full | Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of Dyes |
| title_fullStr | Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of Dyes |
| title_full_unstemmed | Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of Dyes |
| title_short | Hydroxide Sludge/Hydrochar-Fe Composite Catalysts for Photo-Fenton Degradation of Dyes |
| title_sort | hydroxide sludge hydrochar fe composite catalysts for photo fenton degradation of dyes |
| url | http://dx.doi.org/10.1155/2021/5588176 |
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