Reusable Fe<sub>3</sub>O<sub>4</sub>/SBA15 Nanocomposite as an Efficient Photo-Fenton Catalyst for the Removal of Sulfamethoxazole and Orange II
Today, the presence of recalcitrant pollutants in wastewater, such as pharmaceuticals or other organic compounds, is one of the main obstacles to the widespread implementation of water reuse. In this context, the development of innovative processes for their removal becomes necessary to guarantee ef...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/2/533 |
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| author | Jorge González-Rodríguez Lucía Fernández Zulema Vargas-Osorio Carlos Vázquez-Vázquez Yolanda Piñeiro José Rivas Gumersindo Feijoo Maria Teresa Moreira |
| author_facet | Jorge González-Rodríguez Lucía Fernández Zulema Vargas-Osorio Carlos Vázquez-Vázquez Yolanda Piñeiro José Rivas Gumersindo Feijoo Maria Teresa Moreira |
| author_sort | Jorge González-Rodríguez |
| collection | DOAJ |
| description | Today, the presence of recalcitrant pollutants in wastewater, such as pharmaceuticals or other organic compounds, is one of the main obstacles to the widespread implementation of water reuse. In this context, the development of innovative processes for their removal becomes necessary to guarantee effluent quality. This work presents the potentiality of magnetic nanoparticles immobilized on SBA-15 mesoporous silica as Fenton and photo-Fenton catalysts under visible light irradiation. The influence of the characteristics of the compounds and nanoparticles on the removal yield was investigated. Once the key aspects of the reaction mechanism were analyzed, to evaluate the feasibility of this process, an azo dye (Orange II) and an antibiotic (sulfamethoxazole) were selected as main target compounds. The concentration of Orange II decreased below the detection limit after two hours of reaction, with mineralization values of 60%. In addition, repeated sequential experiments revealed the recoverability and stability of the nanoparticles in a small-scale reactor. The benchmarking of the obtained results showed a significant improvement of the process using visible light in terms of kinetic performance, comparing the results to the Fenton process conducted at dark. Reusability, yield and easy separation of the catalyst are its main advantages for the industrial application of this process. |
| first_indexed | 2024-03-09T00:44:09Z |
| format | Article |
| id | doaj.art-d2a40e8eec254c858d16ea451ccb2db6 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T00:44:09Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-d2a40e8eec254c858d16ea451ccb2db62023-12-11T17:40:57ZengMDPI AGNanomaterials2079-49912021-02-0111253310.3390/nano11020533Reusable Fe<sub>3</sub>O<sub>4</sub>/SBA15 Nanocomposite as an Efficient Photo-Fenton Catalyst for the Removal of Sulfamethoxazole and Orange IIJorge González-Rodríguez0Lucía Fernández1Zulema Vargas-Osorio2Carlos Vázquez-Vázquez3Yolanda Piñeiro4José Rivas5Gumersindo Feijoo6Maria Teresa Moreira7CRETUS Institute, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, SpainCRETUS Institute, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, SpainLaboratory of Magnetism and Nanotechnology, Departments of Physical Chemistry, Faculty of Chemistry and Applied Physics, Faculty of Physics, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, SpainLaboratory of Magnetism and Nanotechnology, Departments of Physical Chemistry, Faculty of Chemistry and Applied Physics, Faculty of Physics, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, SpainLaboratory of Magnetism and Nanotechnology, Departments of Physical Chemistry, Faculty of Chemistry and Applied Physics, Faculty of Physics, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, SpainLaboratory of Magnetism and Nanotechnology, Departments of Physical Chemistry, Faculty of Chemistry and Applied Physics, Faculty of Physics, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, SpainCRETUS Institute, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, SpainCRETUS Institute, Department of Chemical Engineering, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, SpainToday, the presence of recalcitrant pollutants in wastewater, such as pharmaceuticals or other organic compounds, is one of the main obstacles to the widespread implementation of water reuse. In this context, the development of innovative processes for their removal becomes necessary to guarantee effluent quality. This work presents the potentiality of magnetic nanoparticles immobilized on SBA-15 mesoporous silica as Fenton and photo-Fenton catalysts under visible light irradiation. The influence of the characteristics of the compounds and nanoparticles on the removal yield was investigated. Once the key aspects of the reaction mechanism were analyzed, to evaluate the feasibility of this process, an azo dye (Orange II) and an antibiotic (sulfamethoxazole) were selected as main target compounds. The concentration of Orange II decreased below the detection limit after two hours of reaction, with mineralization values of 60%. In addition, repeated sequential experiments revealed the recoverability and stability of the nanoparticles in a small-scale reactor. The benchmarking of the obtained results showed a significant improvement of the process using visible light in terms of kinetic performance, comparing the results to the Fenton process conducted at dark. Reusability, yield and easy separation of the catalyst are its main advantages for the industrial application of this process.https://www.mdpi.com/2079-4991/11/2/533magnetic nanoparticlesvisible lightphoto-FentonsulfamethoxazoleOrange IIreuse |
| spellingShingle | Jorge González-Rodríguez Lucía Fernández Zulema Vargas-Osorio Carlos Vázquez-Vázquez Yolanda Piñeiro José Rivas Gumersindo Feijoo Maria Teresa Moreira Reusable Fe<sub>3</sub>O<sub>4</sub>/SBA15 Nanocomposite as an Efficient Photo-Fenton Catalyst for the Removal of Sulfamethoxazole and Orange II Nanomaterials magnetic nanoparticles visible light photo-Fenton sulfamethoxazole Orange II reuse |
| title | Reusable Fe<sub>3</sub>O<sub>4</sub>/SBA15 Nanocomposite as an Efficient Photo-Fenton Catalyst for the Removal of Sulfamethoxazole and Orange II |
| title_full | Reusable Fe<sub>3</sub>O<sub>4</sub>/SBA15 Nanocomposite as an Efficient Photo-Fenton Catalyst for the Removal of Sulfamethoxazole and Orange II |
| title_fullStr | Reusable Fe<sub>3</sub>O<sub>4</sub>/SBA15 Nanocomposite as an Efficient Photo-Fenton Catalyst for the Removal of Sulfamethoxazole and Orange II |
| title_full_unstemmed | Reusable Fe<sub>3</sub>O<sub>4</sub>/SBA15 Nanocomposite as an Efficient Photo-Fenton Catalyst for the Removal of Sulfamethoxazole and Orange II |
| title_short | Reusable Fe<sub>3</sub>O<sub>4</sub>/SBA15 Nanocomposite as an Efficient Photo-Fenton Catalyst for the Removal of Sulfamethoxazole and Orange II |
| title_sort | reusable fe sub 3 sub o sub 4 sub sba15 nanocomposite as an efficient photo fenton catalyst for the removal of sulfamethoxazole and orange ii |
| topic | magnetic nanoparticles visible light photo-Fenton sulfamethoxazole Orange II reuse |
| url | https://www.mdpi.com/2079-4991/11/2/533 |
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