Study of the Phosphorus Adsorption on the Sediments
The objective of this work is to determine the reflection elements, allowing the understanding of the phosphorus fixation mechanisms. The samples were taken from Oued Boufekrane in the Meknes region (Northwest of Morocco). In fact, the sediment characterization was examined by the Brunauer–Emmett–Te...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/2760204 |
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| author | Hind Omari Ali Dehbi Adil Lammini Abdelaziz Abdallaoui |
| author_facet | Hind Omari Ali Dehbi Adil Lammini Abdelaziz Abdallaoui |
| author_sort | Hind Omari |
| collection | DOAJ |
| description | The objective of this work is to determine the reflection elements, allowing the understanding of the phosphorus fixation mechanisms. The samples were taken from Oued Boufekrane in the Meknes region (Northwest of Morocco). In fact, the sediment characterization was examined by the Brunauer–Emmett–Teller (BET) specific surface area and Fourier-transform infrared (FTIR) spectroscopy measurements. A series of experiments were then carried out to study the impact of some parameters on the adsorption capacity. Indeed, the effect of contact time, sediment mass, pH, initial concentration of potassium dihydrogen phosphate KH2PO4, and the temperature has been studied. The characterization of sediment by FTIR spectroscopy shows the existence of carbonates, iron hydroxides, and organic matter. The results obtained showed that the retention of phosphorus on the sediments studied is maximal at pH = 12 and increases with the temperature and the mass of sediments. Phosphorus adsorption kinetics of phosphorus on sediments studied follows the pseudo-second-order model, and the activation energy value (48.51 kJ/mol) indicates the predominance of chemical nature of adsorption (>40 kJ/mol). The experimental data of the adsorption isotherms are well interpreted by the Freundlich model. The values of the thermodynamic parameters ΔG°, ΔH°, and ΔS° indicate that the adsorption reaction is endothermic and occurs spontaneously on the surface of the sediments studied. |
| format | Article |
| id | doaj-art-db33f6c027104560953450dbc86f5b4c |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-db33f6c027104560953450dbc86f5b4c2025-02-03T06:00:54ZengWileyJournal of Chemistry2090-90632090-90712019-01-01201910.1155/2019/27602042760204Study of the Phosphorus Adsorption on the SedimentsHind Omari0Ali Dehbi1Adil Lammini2Abdelaziz Abdallaoui3Department of Chemistry, Faculty of Sciences, University of Moulay Ismail, Zitoune, 11201 Meknes, MoroccoDepartment of Chemistry, Faculty of Sciences, University of Moulay Ismail, Zitoune, 11201 Meknes, MoroccoDepartment of Chemistry, Faculty of Sciences, University of Moulay Ismail, Zitoune, 11201 Meknes, MoroccoDepartment of Chemistry, Faculty of Sciences, University of Moulay Ismail, Zitoune, 11201 Meknes, MoroccoThe objective of this work is to determine the reflection elements, allowing the understanding of the phosphorus fixation mechanisms. The samples were taken from Oued Boufekrane in the Meknes region (Northwest of Morocco). In fact, the sediment characterization was examined by the Brunauer–Emmett–Teller (BET) specific surface area and Fourier-transform infrared (FTIR) spectroscopy measurements. A series of experiments were then carried out to study the impact of some parameters on the adsorption capacity. Indeed, the effect of contact time, sediment mass, pH, initial concentration of potassium dihydrogen phosphate KH2PO4, and the temperature has been studied. The characterization of sediment by FTIR spectroscopy shows the existence of carbonates, iron hydroxides, and organic matter. The results obtained showed that the retention of phosphorus on the sediments studied is maximal at pH = 12 and increases with the temperature and the mass of sediments. Phosphorus adsorption kinetics of phosphorus on sediments studied follows the pseudo-second-order model, and the activation energy value (48.51 kJ/mol) indicates the predominance of chemical nature of adsorption (>40 kJ/mol). The experimental data of the adsorption isotherms are well interpreted by the Freundlich model. The values of the thermodynamic parameters ΔG°, ΔH°, and ΔS° indicate that the adsorption reaction is endothermic and occurs spontaneously on the surface of the sediments studied.http://dx.doi.org/10.1155/2019/2760204 |
| spellingShingle | Hind Omari Ali Dehbi Adil Lammini Abdelaziz Abdallaoui Study of the Phosphorus Adsorption on the Sediments Journal of Chemistry |
| title | Study of the Phosphorus Adsorption on the Sediments |
| title_full | Study of the Phosphorus Adsorption on the Sediments |
| title_fullStr | Study of the Phosphorus Adsorption on the Sediments |
| title_full_unstemmed | Study of the Phosphorus Adsorption on the Sediments |
| title_short | Study of the Phosphorus Adsorption on the Sediments |
| title_sort | study of the phosphorus adsorption on the sediments |
| url | http://dx.doi.org/10.1155/2019/2760204 |
| work_keys_str_mv | AT hindomari studyofthephosphorusadsorptiononthesediments AT alidehbi studyofthephosphorusadsorptiononthesediments AT adillammini studyofthephosphorusadsorptiononthesediments AT abdelazizabdallaoui studyofthephosphorusadsorptiononthesediments |