Synthesis of zeolite-A/Fe3O4/biochar/MOF-5 composite for the defluoridation of drinking water
Abstract High concentrations of F−in groundwater used for drinking purpose have a serious public health problem in the Rift Valley area of Ethiopia. In this study, the zeolite-A/Fe3O4/Biochar/MOF-5 (Z-A/Fe3O4/BC/MOF-5) composite was synthesized through the solvothermal method as a mitigation option...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-06-01
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| Series: | Applied Water Science |
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| Online Access: | https://doi.org/10.1007/s13201-025-02438-w |
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| author | Tessema Derbe Teketel Girma Gindose Taju Sani Enyew Amare Zereffa |
| author_facet | Tessema Derbe Teketel Girma Gindose Taju Sani Enyew Amare Zereffa |
| author_sort | Tessema Derbe |
| collection | DOAJ |
| description | Abstract High concentrations of F−in groundwater used for drinking purpose have a serious public health problem in the Rift Valley area of Ethiopia. In this study, the zeolite-A/Fe3O4/Biochar/MOF-5 (Z-A/Fe3O4/BC/MOF-5) composite was synthesized through the solvothermal method as a mitigation option for the defluoridation of drinking water. The as-synthesized adsorbent was characterized by XRD, BET, FT-IR, and SEM–EDX to identify phase structure, surface area, functional group, morphology, and elemental composition, respectively. The adsorption study of the synthesized composite was started by optimizing the defluoridation parameters. According to these factors, the maximum defluoridation efficiency (96.20%) and defluoridation capacity (28.86 mg/g) were obtained at 10 mg/L of F− initial concentration, 0.6 g/L of adsorbent dose, 12 h of contact time, and pH 3. The Freundlich and pseudo-second-order models are well fitted to explain the adsorption isotherm and kinetic, with R 2 values of 0.98338 and 0.99722, sequentially. The defluoridation performance of the Z-A/Fe3O4/BC/MOF-5 composite was tested on real water samples collected from Kenteri and Ziway town, Ethiopia. Interestingly, this experimental test revealed its high performance, which is 91.92% and 93.29% F− removal efficiency from 12.25 and 8.5 mg/L of F− initial concentration, respectively. The recyclability study also showed the high activity of Z-A/Fe3O4/BC/MOF-5 composite in the removal of F− with 93.60, 91.10, 89.00, 86.00, and 74.80% defluoridation efficiency for first, second, third, fourth and fifth cycles, respectively. Thus, the synthesized composite adsorbent can be reused and be a feasible option for the defluoridation of drinking water. |
| format | Article |
| id | doaj-art-412bfaa5f6ec49dabde68f6677390755 |
| institution | Kabale University |
| issn | 2190-5487 2190-5495 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj-art-412bfaa5f6ec49dabde68f66773907552025-08-20T03:43:14ZengSpringerOpenApplied Water Science2190-54872190-54952025-06-0115711810.1007/s13201-025-02438-wSynthesis of zeolite-A/Fe3O4/biochar/MOF-5 composite for the defluoridation of drinking waterTessema Derbe0Teketel Girma Gindose1Taju Sani2Enyew Amare Zereffa3Department of Industrial Chemistry, Addis Ababa Science and Technology UniversityDepartment of Industrial Chemistry, Addis Ababa Science and Technology UniversityDepartment of Industrial Chemistry, Addis Ababa Science and Technology UniversityDepartment of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology UniversityAbstract High concentrations of F−in groundwater used for drinking purpose have a serious public health problem in the Rift Valley area of Ethiopia. In this study, the zeolite-A/Fe3O4/Biochar/MOF-5 (Z-A/Fe3O4/BC/MOF-5) composite was synthesized through the solvothermal method as a mitigation option for the defluoridation of drinking water. The as-synthesized adsorbent was characterized by XRD, BET, FT-IR, and SEM–EDX to identify phase structure, surface area, functional group, morphology, and elemental composition, respectively. The adsorption study of the synthesized composite was started by optimizing the defluoridation parameters. According to these factors, the maximum defluoridation efficiency (96.20%) and defluoridation capacity (28.86 mg/g) were obtained at 10 mg/L of F− initial concentration, 0.6 g/L of adsorbent dose, 12 h of contact time, and pH 3. The Freundlich and pseudo-second-order models are well fitted to explain the adsorption isotherm and kinetic, with R 2 values of 0.98338 and 0.99722, sequentially. The defluoridation performance of the Z-A/Fe3O4/BC/MOF-5 composite was tested on real water samples collected from Kenteri and Ziway town, Ethiopia. Interestingly, this experimental test revealed its high performance, which is 91.92% and 93.29% F− removal efficiency from 12.25 and 8.5 mg/L of F− initial concentration, respectively. The recyclability study also showed the high activity of Z-A/Fe3O4/BC/MOF-5 composite in the removal of F− with 93.60, 91.10, 89.00, 86.00, and 74.80% defluoridation efficiency for first, second, third, fourth and fifth cycles, respectively. Thus, the synthesized composite adsorbent can be reused and be a feasible option for the defluoridation of drinking water.https://doi.org/10.1007/s13201-025-02438-wAdsorptionCompositeDefluoridationDrinking waterFluoride |
| spellingShingle | Tessema Derbe Teketel Girma Gindose Taju Sani Enyew Amare Zereffa Synthesis of zeolite-A/Fe3O4/biochar/MOF-5 composite for the defluoridation of drinking water Applied Water Science Adsorption Composite Defluoridation Drinking water Fluoride |
| title | Synthesis of zeolite-A/Fe3O4/biochar/MOF-5 composite for the defluoridation of drinking water |
| title_full | Synthesis of zeolite-A/Fe3O4/biochar/MOF-5 composite for the defluoridation of drinking water |
| title_fullStr | Synthesis of zeolite-A/Fe3O4/biochar/MOF-5 composite for the defluoridation of drinking water |
| title_full_unstemmed | Synthesis of zeolite-A/Fe3O4/biochar/MOF-5 composite for the defluoridation of drinking water |
| title_short | Synthesis of zeolite-A/Fe3O4/biochar/MOF-5 composite for the defluoridation of drinking water |
| title_sort | synthesis of zeolite a fe3o4 biochar mof 5 composite for the defluoridation of drinking water |
| topic | Adsorption Composite Defluoridation Drinking water Fluoride |
| url | https://doi.org/10.1007/s13201-025-02438-w |
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