Systematic metronidazole adsorption performance onto montmorillonite clay: Parametric study, process modelling and RSM optimisation
The aim of this study was to eliminate metronidazole in aqueous medium using clay material. The properties of adsorbent material collected in Cameroon were determined by BET, XRD, EDX-SEM, XRF, FTIR and zeta potential to provide its surface area, mineralogy, morphology, seize, functional groups and...
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Elsevier
2025-03-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715625001365 |
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| author | Jean Paul Nongni Tejeogue Raphael Djakba Cyrille Ghislain Fotsop Narcisse Dobe Sali Mouhamadou Bagamla Wangmene Massai Harouna |
| author_facet | Jean Paul Nongni Tejeogue Raphael Djakba Cyrille Ghislain Fotsop Narcisse Dobe Sali Mouhamadou Bagamla Wangmene Massai Harouna |
| author_sort | Jean Paul Nongni Tejeogue |
| collection | DOAJ |
| description | The aim of this study was to eliminate metronidazole in aqueous medium using clay material. The properties of adsorbent material collected in Cameroon were determined by BET, XRD, EDX-SEM, XRF, FTIR and zeta potential to provide its surface area, mineralogy, morphology, seize, functional groups and electrical charge. Batch adsorption experiment was used for metronidazole (MNZ) removal by considering several key operational parameters such as time, adsorbent dose and pH. Optimization process was done using full factorial experimental design. The rate of the reaction and mechanism was verified through linear and nonlinear isotherms, kinetics and statistical error analysis. Characterization of material have shown that it is a montmorillonite mineral clay with a specific surface area of 51.73 m2/g according to BET method. The calculated interlayer distance using Bragg law was d001 = 10.18Å. The optimum uptake capacity reached was 84.22 mg/g at a contact time of 20 min with adsorbent mass of 0.01 g at pH 7 using MNZ concentration of 80 mg/L. the second order kinetic model fitted best the experimental data and the reaction was controlled by Freundlich isotherm which indicate multilayer adsorption onto heterogeneous surface. The full factorial design also showed that mass and pH significantly influence adsorption process in view of surface response graph. |
| format | Article |
| id | doaj-art-266e2a30420a4e3a802b0b87d690ab36 |
| institution | DOAJ |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj-art-266e2a30420a4e3a802b0b87d690ab362025-08-20T02:47:33ZengElsevierResults in Chemistry2211-71562025-03-011410215310.1016/j.rechem.2025.102153Systematic metronidazole adsorption performance onto montmorillonite clay: Parametric study, process modelling and RSM optimisationJean Paul Nongni Tejeogue0Raphael Djakba1Cyrille Ghislain Fotsop2Narcisse Dobe3Sali Mouhamadou4Bagamla Wangmene5Massai Harouna6Department of Chemistry, Faculty of Science, University of Maroua, CameroonDepartment of Chemistry, Faculty of Science, University of Maroua, Cameroon; Department of Chemistry, Faculty of Science, University of Maroua, Cameroon.Institute of Chemistry, Faculty of Process and Systems Engineering, University of Magdeburg, GermanyDepartment of Chemistry, Faculty of Science, University of Maroua, Cameroon; Department of Fundamental Science, National Advanced School of Mines and Petroleum Industries, University of Maroua, Cameroon; Department of Chemistry, Faculty of Science, University of Maroua, Cameroon.Department of Chemistry, Faculty of Science, University of Maroua, Cameroon; Department of Chemistry, Faculty of Science, University of Garoua, Cameroon; Department of Chemistry, Faculty of Science, University of Maroua, Cameroon.Department of Chemistry, Faculty of Science, University of Maroua, CameroonDepartment of Chemistry, Faculty of Science, University of Maroua, Cameroon; Department of Chemistry, Faculty of Science, University of Garoua, CameroonThe aim of this study was to eliminate metronidazole in aqueous medium using clay material. The properties of adsorbent material collected in Cameroon were determined by BET, XRD, EDX-SEM, XRF, FTIR and zeta potential to provide its surface area, mineralogy, morphology, seize, functional groups and electrical charge. Batch adsorption experiment was used for metronidazole (MNZ) removal by considering several key operational parameters such as time, adsorbent dose and pH. Optimization process was done using full factorial experimental design. The rate of the reaction and mechanism was verified through linear and nonlinear isotherms, kinetics and statistical error analysis. Characterization of material have shown that it is a montmorillonite mineral clay with a specific surface area of 51.73 m2/g according to BET method. The calculated interlayer distance using Bragg law was d001 = 10.18Å. The optimum uptake capacity reached was 84.22 mg/g at a contact time of 20 min with adsorbent mass of 0.01 g at pH 7 using MNZ concentration of 80 mg/L. the second order kinetic model fitted best the experimental data and the reaction was controlled by Freundlich isotherm which indicate multilayer adsorption onto heterogeneous surface. The full factorial design also showed that mass and pH significantly influence adsorption process in view of surface response graph.http://www.sciencedirect.com/science/article/pii/S2211715625001365ClayMetronidazoleAdsorptionFull Factorial DesignIsotherm and Kinetic |
| spellingShingle | Jean Paul Nongni Tejeogue Raphael Djakba Cyrille Ghislain Fotsop Narcisse Dobe Sali Mouhamadou Bagamla Wangmene Massai Harouna Systematic metronidazole adsorption performance onto montmorillonite clay: Parametric study, process modelling and RSM optimisation Results in Chemistry Clay Metronidazole Adsorption Full Factorial Design Isotherm and Kinetic |
| title | Systematic metronidazole adsorption performance onto montmorillonite clay: Parametric study, process modelling and RSM optimisation |
| title_full | Systematic metronidazole adsorption performance onto montmorillonite clay: Parametric study, process modelling and RSM optimisation |
| title_fullStr | Systematic metronidazole adsorption performance onto montmorillonite clay: Parametric study, process modelling and RSM optimisation |
| title_full_unstemmed | Systematic metronidazole adsorption performance onto montmorillonite clay: Parametric study, process modelling and RSM optimisation |
| title_short | Systematic metronidazole adsorption performance onto montmorillonite clay: Parametric study, process modelling and RSM optimisation |
| title_sort | systematic metronidazole adsorption performance onto montmorillonite clay parametric study process modelling and rsm optimisation |
| topic | Clay Metronidazole Adsorption Full Factorial Design Isotherm and Kinetic |
| url | http://www.sciencedirect.com/science/article/pii/S2211715625001365 |
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