Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk Analysis
The problem of the deep elimination of antibiotics in environmental bodies is exceptionally warranted. In this work, a ternary nanocomposite of FeNi<sub>3</sub>/SiO<sub>2</sub>/CuS (FSC) was fabricated and then integrated with UV light irradiation and hydrogen peroxide as the...
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MDPI AG
2023-06-01
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| author | Mohamadamin Amarzadeh Moslem Azqandi Kasra Nateq Bahman Ramavandi Nadeem A. Khan Negin Nasseh |
| author_facet | Mohamadamin Amarzadeh Moslem Azqandi Kasra Nateq Bahman Ramavandi Nadeem A. Khan Negin Nasseh |
| author_sort | Mohamadamin Amarzadeh |
| collection | DOAJ |
| description | The problem of the deep elimination of antibiotics in environmental bodies is exceptionally warranted. In this work, a ternary nanocomposite of FeNi<sub>3</sub>/SiO<sub>2</sub>/CuS (FSC) was fabricated and then integrated with UV light irradiation and hydrogen peroxide as the heterogeneous Fenton-like photocatalytic system for the decomposition of tetracycline (TC) from aqueous media. During this process, various influencing parameters such as pH, catalyst dosage, initial content of TC, hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) dose, and operating time were explored. At optimized circumstances, i.e., 5 of pH, 10 mg/L of TC concentration, 150 mg/L of H<sub>2</sub>O<sub>2</sub> dosage, and 200 min of degradation time, the elimination proportion of TC was 96%. The results of capture agent tests clarified that hydroxyl radical (HO<sup>•</sup>) played the predominant role in the photocatalytic decontamination of TC. Moreover, with the elevated contact time and content of H<sub>2</sub>O<sub>2</sub>, the efficiency of TC decontamination increased significantly. Additionally, the findings of the stability and reusability experiments of the fabricated nanocomposite showed that the percentage of TC removal decreased by only about 5% after six cycles. Furthermore, the photocatalytic mechanism of the decontamination of TC over the FSC photocatalyst was elucidated. Eventually, the non-carcinogenic risk analysis in the surface water sample was carried out using multiple photocatalytic processes for the first time. These outcomes obtained in this study validate that coupling the photocatalytic system and the H<sub>2</sub>O<sub>2</sub> oxidation agent facilitates the elimination of a great variety of pharmaceutical contaminants from aqueous media. |
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| language | English |
| last_indexed | 2024-03-11T01:25:52Z |
| publishDate | 2023-06-01 |
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| series | Water |
| spelling | doaj.art-d5db51cc95ba4f43b6263ba2fb27ff172023-11-18T17:46:43ZengMDPI AGWater2073-44412023-06-011513233610.3390/w15132336Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk AnalysisMohamadamin Amarzadeh0Moslem Azqandi1Kasra Nateq2Bahman Ramavandi3Nadeem A. Khan4Negin Nasseh5Department of Safety Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan 6318714317, IranStudent Research Committee, Birjand University of Medical Sciences, Birjand 9717853076, IranDepartment of Chemical Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan 6318714317, IranEnvironmental Health Engineering Department, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr 7514633196, IranInterdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaCellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand 9717853076, IranThe problem of the deep elimination of antibiotics in environmental bodies is exceptionally warranted. In this work, a ternary nanocomposite of FeNi<sub>3</sub>/SiO<sub>2</sub>/CuS (FSC) was fabricated and then integrated with UV light irradiation and hydrogen peroxide as the heterogeneous Fenton-like photocatalytic system for the decomposition of tetracycline (TC) from aqueous media. During this process, various influencing parameters such as pH, catalyst dosage, initial content of TC, hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) dose, and operating time were explored. At optimized circumstances, i.e., 5 of pH, 10 mg/L of TC concentration, 150 mg/L of H<sub>2</sub>O<sub>2</sub> dosage, and 200 min of degradation time, the elimination proportion of TC was 96%. The results of capture agent tests clarified that hydroxyl radical (HO<sup>•</sup>) played the predominant role in the photocatalytic decontamination of TC. Moreover, with the elevated contact time and content of H<sub>2</sub>O<sub>2</sub>, the efficiency of TC decontamination increased significantly. Additionally, the findings of the stability and reusability experiments of the fabricated nanocomposite showed that the percentage of TC removal decreased by only about 5% after six cycles. Furthermore, the photocatalytic mechanism of the decontamination of TC over the FSC photocatalyst was elucidated. Eventually, the non-carcinogenic risk analysis in the surface water sample was carried out using multiple photocatalytic processes for the first time. These outcomes obtained in this study validate that coupling the photocatalytic system and the H<sub>2</sub>O<sub>2</sub> oxidation agent facilitates the elimination of a great variety of pharmaceutical contaminants from aqueous media.https://www.mdpi.com/2073-4441/15/13/2336FeNi<sub>3</sub>/SiO<sub>2</sub>/CuS magnetic nanocompositetetracyclinedegradationheterogeneous photocatalytic Fenton-like process |
| spellingShingle | Mohamadamin Amarzadeh Moslem Azqandi Kasra Nateq Bahman Ramavandi Nadeem A. Khan Negin Nasseh Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk Analysis Water FeNi<sub>3</sub>/SiO<sub>2</sub>/CuS magnetic nanocomposite tetracycline degradation heterogeneous photocatalytic Fenton-like process |
| title | Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk Analysis |
| title_full | Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk Analysis |
| title_fullStr | Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk Analysis |
| title_full_unstemmed | Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk Analysis |
| title_short | Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk Analysis |
| title_sort | heterogeneous fenton like photocatalytic process towards the eradication of tetracycline under uv irradiation mechanism elucidation and environmental risk analysis |
| topic | FeNi<sub>3</sub>/SiO<sub>2</sub>/CuS magnetic nanocomposite tetracycline degradation heterogeneous photocatalytic Fenton-like process |
| url | https://www.mdpi.com/2073-4441/15/13/2336 |
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