A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles
The production of cobalt oxide nanoparticles and their use in the adsorption of methylene blue (MB) from solution is described in the paper. The X-ray diffraction patterns show that the synthesized cobalt oxide nanoparticles have a crystalline cubic structure. The study of the adsorption of methylen...
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MDPI AG
2024-01-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/29/2/412 |
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| author | Ali Dehbi Younes Dehmani Dison S. P. Franco Hind Omari Jordana Georgin Younes Brahmi Kaoutar Elazhari Mohammed Messaoudi Imane Aadnan Taibi Lamhasni Awad A. Alrashdi Abdelaziz Abdallaoui Sadik Abouarnadasse Adil Lamini |
| author_facet | Ali Dehbi Younes Dehmani Dison S. P. Franco Hind Omari Jordana Georgin Younes Brahmi Kaoutar Elazhari Mohammed Messaoudi Imane Aadnan Taibi Lamhasni Awad A. Alrashdi Abdelaziz Abdallaoui Sadik Abouarnadasse Adil Lamini |
| author_sort | Ali Dehbi |
| collection | DOAJ |
| description | The production of cobalt oxide nanoparticles and their use in the adsorption of methylene blue (MB) from solution is described in the paper. The X-ray diffraction patterns show that the synthesized cobalt oxide nanoparticles have a crystalline cubic structure. The study of the adsorption of methylene blue onto the cobalt oxide nanoparticles involved determining the contact time and initial concentration of the adsorption of MB on the adsorbent. The kinetics of adsorption were analyzed using two kinetic models (pseudo-first order and pseudo-second order), and the pseudo-second-order model was found to be the most appropriate for describing the behavior of the adsorption. This study indicates that the MLTS (monolayer with the same number of molecules per site) model is the most suitable model for describing methylene blue/cobalt oxide systems, and the parameter values help to further understand the adsorption process with the steric parameters. Indicating that methylene blue is horizontally adsorbed onto the surface of the cobalt oxide, which is bonded to two different receptor sites. Regarding the temperature effect, it was found that the adsorption capacity increased, with the experimental value ranging from 313.7 to 405.3 mg g<sup>−1</sup>, while the MLTS predicted 313.32 and 408.16 mg g<sup>−1</sup>. From the thermodynamic functions, high entropy was found around 280 mg L<sup>−1</sup> concentration. For all concentrations and temperatures examined, the Gibbs free energy and enthalpy of adsorption were found to be negative and positive, respectively, suggesting that the system is spontaneous and endothermic. According to this study’s findings, methylene blue adsorption onto cobalt oxide nanoparticles happens via the creation of a monolayer, in which the same amount of molecules are adsorbed at two distinct locations. The findings shed light on the methylene blue adsorption process onto cobalt oxide nanoparticles, which have a variety of uses, including the remediation of wastewater. |
| first_indexed | 2024-03-08T09:49:41Z |
| format | Article |
| id | doaj.art-6473bb43b51d498d8b01f4e92aede769 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-08T09:49:41Z |
| publishDate | 2024-01-01 |
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| series | Molecules |
| spelling | doaj.art-6473bb43b51d498d8b01f4e92aede7692024-01-29T14:08:23ZengMDPI AGMolecules1420-30492024-01-0129241210.3390/molecules29020412A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide NanoparticlesAli Dehbi0Younes Dehmani1Dison S. P. Franco2Hind Omari3Jordana Georgin4Younes Brahmi5Kaoutar Elazhari6Mohammed Messaoudi7Imane Aadnan8Taibi Lamhasni9Awad A. Alrashdi10Abdelaziz Abdallaoui11Sadik Abouarnadasse12Adil Lamini13Laboratory of Chemistry/Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Chemistry/Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoDepartment of Civil and Environmental, Universidad de la Costa, CUC, Calle 58 # 55–66, Barranquilla 50366, ColombiaLaboratory of Chemistry/Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoDepartment of Civil and Environmental, Universidad de la Costa, CUC, Calle 58 # 55–66, Barranquilla 50366, ColombiaHTMR-Lab, Mohammed VI Polytechnic University (UM6P), Ben Guerir 43150, MoroccoLaboratory of Chemistry/Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Materials, Membranes and Nanotechnology, Department of Chemistry, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Chemistry/Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoInstitut National des Sciences de l’Archéologie et du Patrimoine (INSAP), BP 6828, Madinat al Irfane, Avenue Allal El-Fassi, Angle rues 5 et 7, Rabat 10000, MoroccoChemistry Department, Al-Qunfudah University College, Umm Al-Qura University, Mecca 24382, Saudi ArabiaLaboratory of Chemistry/Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Chemistry/Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoLaboratory of Chemistry/Biology Applied to the Environment, Faculty of Sciences, Moulay Ismail University, Meknes 50070, MoroccoThe production of cobalt oxide nanoparticles and their use in the adsorption of methylene blue (MB) from solution is described in the paper. The X-ray diffraction patterns show that the synthesized cobalt oxide nanoparticles have a crystalline cubic structure. The study of the adsorption of methylene blue onto the cobalt oxide nanoparticles involved determining the contact time and initial concentration of the adsorption of MB on the adsorbent. The kinetics of adsorption were analyzed using two kinetic models (pseudo-first order and pseudo-second order), and the pseudo-second-order model was found to be the most appropriate for describing the behavior of the adsorption. This study indicates that the MLTS (monolayer with the same number of molecules per site) model is the most suitable model for describing methylene blue/cobalt oxide systems, and the parameter values help to further understand the adsorption process with the steric parameters. Indicating that methylene blue is horizontally adsorbed onto the surface of the cobalt oxide, which is bonded to two different receptor sites. Regarding the temperature effect, it was found that the adsorption capacity increased, with the experimental value ranging from 313.7 to 405.3 mg g<sup>−1</sup>, while the MLTS predicted 313.32 and 408.16 mg g<sup>−1</sup>. From the thermodynamic functions, high entropy was found around 280 mg L<sup>−1</sup> concentration. For all concentrations and temperatures examined, the Gibbs free energy and enthalpy of adsorption were found to be negative and positive, respectively, suggesting that the system is spontaneous and endothermic. According to this study’s findings, methylene blue adsorption onto cobalt oxide nanoparticles happens via the creation of a monolayer, in which the same amount of molecules are adsorbed at two distinct locations. The findings shed light on the methylene blue adsorption process onto cobalt oxide nanoparticles, which have a variety of uses, including the remediation of wastewater.https://www.mdpi.com/1420-3049/29/2/412dyesmethylene bluecobalt oxideadvanced statistical physics modelslogistic models |
| spellingShingle | Ali Dehbi Younes Dehmani Dison S. P. Franco Hind Omari Jordana Georgin Younes Brahmi Kaoutar Elazhari Mohammed Messaoudi Imane Aadnan Taibi Lamhasni Awad A. Alrashdi Abdelaziz Abdallaoui Sadik Abouarnadasse Adil Lamini A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles Molecules dyes methylene blue cobalt oxide advanced statistical physics models logistic models |
| title | A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles |
| title_full | A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles |
| title_fullStr | A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles |
| title_full_unstemmed | A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles |
| title_short | A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles |
| title_sort | statistical physics approach to understanding the adsorption of methylene blue onto cobalt oxide nanoparticles |
| topic | dyes methylene blue cobalt oxide advanced statistical physics models logistic models |
| url | https://www.mdpi.com/1420-3049/29/2/412 |
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