Building TiO2-doped magnetic biochars from Citrus sinensis peels as low-cost materials for improved dye degradation using a mathematical approach
TiO2-doped ferromagnetic (TiFeBC) composites were synthesised from lignocellulosic orange peel biochar (BC) material using co-precipitation method. Several characterization techniques (XRD, SEM, EDX, FT-IR, EIS and N2 adsorption-desorption) were used to confirm the presence of Fe3O4 and TiO2 particl...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Applied Surface Science Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666523923001885 |
| _version_ | 1797296212825604096 |
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| author | Georges Teikam Kenda Cyrille Ghislain Fotsop Donald Raoul Tchuifon Tchuifon Paul Alain Nanssou Kouteu Tania Feze Fanle Solomon Gabche Anagho |
| author_facet | Georges Teikam Kenda Cyrille Ghislain Fotsop Donald Raoul Tchuifon Tchuifon Paul Alain Nanssou Kouteu Tania Feze Fanle Solomon Gabche Anagho |
| author_sort | Georges Teikam Kenda |
| collection | DOAJ |
| description | TiO2-doped ferromagnetic (TiFeBC) composites were synthesised from lignocellulosic orange peel biochar (BC) material using co-precipitation method. Several characterization techniques (XRD, SEM, EDX, FT-IR, EIS and N2 adsorption-desorption) were used to confirm the presence of Fe3O4 and TiO2 particles impregnated within the carbonaceous matrix of the biochar. Electrochemical impedance spectroscopy revealed that the sample obtained using 2.5 wt. % of TiO2 (TiFeBC1) has the lowest charge transfer resistance compared to those of 5 wt.% and 7.5 wt.%. TiFeBC1 was used for the optimization of the degradation of reactive yellow-145 from Cameroon Textile Industry using Fenton process. Optimum operational parameters were found to be: pH of 2.02, initial dye concentration of 75 mg/L, mass of material of 5998 mg/L and a time of 16.01 min. Using the CCD of the Response Surface Methodology, a predicted optimum response of 98.89 % was obtained in agreement with an experimental response of 97.95 % of dye degradation. Analysis of variance presented good correlation between the experimental data and the postulated model (R2 = 94.24 % and R2adjusted = 87.52 %). The degradation reaction was found to obey the first order kinetic rate law (R2 = 0.986) with respect to the dye. The study of interfering processes revealed that adsorption and H2O2/daylight-assisted degradation are two phenomenon that could possibly contribute to a negligible extent to the elimination of the dye during the Fenton process. The stability and efficiency of TiFeBC1 was evaluated over ten cycles and the material was found to lose approximately 5 % of its efficiency. |
| first_indexed | 2024-03-07T22:00:06Z |
| format | Article |
| id | doaj.art-72c85ba13dc44f569c32e0fd70844538 |
| institution | Directory Open Access Journal |
| issn | 2666-5239 |
| language | English |
| last_indexed | 2024-03-07T22:00:06Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Applied Surface Science Advances |
| spelling | doaj.art-72c85ba13dc44f569c32e0fd708445382024-02-24T04:55:29ZengElsevierApplied Surface Science Advances2666-52392024-02-0119100554Building TiO2-doped magnetic biochars from Citrus sinensis peels as low-cost materials for improved dye degradation using a mathematical approachGeorges Teikam Kenda0Cyrille Ghislain Fotsop1Donald Raoul Tchuifon Tchuifon2Paul Alain Nanssou Kouteu3Tania Feze Fanle4Solomon Gabche Anagho5Department of Chemistry, Faculty of Science, Research Unit of Noxious Chemistry and Environmental Engineering, University of Dschang, P.O. Box 67, Dschang, CameroonDepartment of Chemistry, Faculty of Science, Research Unit of Noxious Chemistry and Environmental Engineering, University of Dschang, P.O. Box 67, Dschang, Cameroon; Faculty of Process and Systems Engineering, Institute of Chemistry, Universität Platz 2, Magdeburg 39106, GermanyDepartment of Chemistry, Faculty of Science, Research Unit of Noxious Chemistry and Environmental Engineering, University of Dschang, P.O. Box 67, Dschang, Cameroon; Department of Process Engineering, Laboratory of Energy, Materials, Modeling and Method, National Higher Polytechnic School of Douala, University of Douala, Douala, Cameroon; Corresponding author at: Department of Process Engineering, Laboratory of Energy, Materials, Modeling and Method, National Higher Polytechnic School of Douala, University of Douala, P.O. Box 2701, Douala, Cameroon.Department of Process Engineering, Laboratory of Energy, Materials, Modeling and Method, National Higher Polytechnic School of Douala, University of Douala, Douala, Cameroon; Process Engineering Laboratory, Ucac-Icam Institute, P.O. Box 5504, Douala, CameroonDepartment of Process Engineering, Laboratory of Energy, Materials, Modeling and Method, National Higher Polytechnic School of Douala, University of Douala, Douala, CameroonDepartment of Chemistry, Faculty of Science, Research Unit of Noxious Chemistry and Environmental Engineering, University of Dschang, P.O. Box 67, Dschang, CameroonTiO2-doped ferromagnetic (TiFeBC) composites were synthesised from lignocellulosic orange peel biochar (BC) material using co-precipitation method. Several characterization techniques (XRD, SEM, EDX, FT-IR, EIS and N2 adsorption-desorption) were used to confirm the presence of Fe3O4 and TiO2 particles impregnated within the carbonaceous matrix of the biochar. Electrochemical impedance spectroscopy revealed that the sample obtained using 2.5 wt. % of TiO2 (TiFeBC1) has the lowest charge transfer resistance compared to those of 5 wt.% and 7.5 wt.%. TiFeBC1 was used for the optimization of the degradation of reactive yellow-145 from Cameroon Textile Industry using Fenton process. Optimum operational parameters were found to be: pH of 2.02, initial dye concentration of 75 mg/L, mass of material of 5998 mg/L and a time of 16.01 min. Using the CCD of the Response Surface Methodology, a predicted optimum response of 98.89 % was obtained in agreement with an experimental response of 97.95 % of dye degradation. Analysis of variance presented good correlation between the experimental data and the postulated model (R2 = 94.24 % and R2adjusted = 87.52 %). The degradation reaction was found to obey the first order kinetic rate law (R2 = 0.986) with respect to the dye. The study of interfering processes revealed that adsorption and H2O2/daylight-assisted degradation are two phenomenon that could possibly contribute to a negligible extent to the elimination of the dye during the Fenton process. The stability and efficiency of TiFeBC1 was evaluated over ten cycles and the material was found to lose approximately 5 % of its efficiency.http://www.sciencedirect.com/science/article/pii/S2666523923001885Reactive yellow-145BiocharDesign of experimentsTitanium dioxideMagnetiteCo-precipitation |
| spellingShingle | Georges Teikam Kenda Cyrille Ghislain Fotsop Donald Raoul Tchuifon Tchuifon Paul Alain Nanssou Kouteu Tania Feze Fanle Solomon Gabche Anagho Building TiO2-doped magnetic biochars from Citrus sinensis peels as low-cost materials for improved dye degradation using a mathematical approach Applied Surface Science Advances Reactive yellow-145 Biochar Design of experiments Titanium dioxide Magnetite Co-precipitation |
| title | Building TiO2-doped magnetic biochars from Citrus sinensis peels as low-cost materials for improved dye degradation using a mathematical approach |
| title_full | Building TiO2-doped magnetic biochars from Citrus sinensis peels as low-cost materials for improved dye degradation using a mathematical approach |
| title_fullStr | Building TiO2-doped magnetic biochars from Citrus sinensis peels as low-cost materials for improved dye degradation using a mathematical approach |
| title_full_unstemmed | Building TiO2-doped magnetic biochars from Citrus sinensis peels as low-cost materials for improved dye degradation using a mathematical approach |
| title_short | Building TiO2-doped magnetic biochars from Citrus sinensis peels as low-cost materials for improved dye degradation using a mathematical approach |
| title_sort | building tio2 doped magnetic biochars from citrus sinensis peels as low cost materials for improved dye degradation using a mathematical approach |
| topic | Reactive yellow-145 Biochar Design of experiments Titanium dioxide Magnetite Co-precipitation |
| url | http://www.sciencedirect.com/science/article/pii/S2666523923001885 |
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