Adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite: Equilibrium, kinetic and thermodynamic studies
In the recent time, adsorption is a commonly economical way for removal of pollutants from wastewater. Chlorotriazine has been a serious threat to life of both human and animal. Modified kaolinite clays were separately prepared by chemical impregnation method with 2 M H2SO4 and 2 M NaOH respectively...
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| Format: | Article |
| Language: | English |
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Elsevier
2019-06-01
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| Series: | Egyptian Journal of Aquatic Research |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1687428519300305 |
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| author | Friday Onyekwere Nwosu Oluwaseun Jacob Ajala Fatai Olaiwola Okeola Samad Alaya Adebayo Oluyemi K. Olanlokun Abiodun Omodele Eletta |
| author_facet | Friday Onyekwere Nwosu Oluwaseun Jacob Ajala Fatai Olaiwola Okeola Samad Alaya Adebayo Oluyemi K. Olanlokun Abiodun Omodele Eletta |
| author_sort | Friday Onyekwere Nwosu |
| collection | DOAJ |
| description | In the recent time, adsorption is a commonly economical way for removal of pollutants from wastewater. Chlorotriazine has been a serious threat to life of both human and animal. Modified kaolinite clays were separately prepared by chemical impregnation method with 2 M H2SO4 and 2 M NaOH respectively in w/v of 1:2 for a period of 24 h to give unmodified kaolinite (UKC), 2 M H2SO4 modified kaolinite (2-AKC) and 2 Mm3 NaOH modified kaolinite clays (2-BKC) respectively. The UKC with maximum intake value (125.3 mg/g) was derived at equilibrium of 1100 mg/L while 96.65 mg g−1 of 2-AKC was obtained at equilibrium of 500 mg L−1 and that of 2-BKC was found at equilibrium of 700 mg/L. The Langmuir isotherm best explained the removal of Chlorotriazine onto various kaolinite clays while pseudo 2nd order kinetics fitted best. Thus, kaolinite clays have been proved as a potential adsorbent for the removal of chlorotriazine molecules. Keywords: Atrazine, Kaolinite clay, Batch process, Equilibrium, Kinetics |
| first_indexed | 2024-12-21T13:18:06Z |
| format | Article |
| id | doaj.art-689904e67d564c03b276bb12e1b6f556 |
| institution | Directory Open Access Journal |
| issn | 1687-4285 |
| language | English |
| last_indexed | 2024-12-21T13:18:06Z |
| publishDate | 2019-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Egyptian Journal of Aquatic Research |
| spelling | doaj.art-689904e67d564c03b276bb12e1b6f5562022-12-21T19:02:39ZengElsevierEgyptian Journal of Aquatic Research1687-42852019-06-0145299107Adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite: Equilibrium, kinetic and thermodynamic studiesFriday Onyekwere Nwosu0Oluwaseun Jacob Ajala1Fatai Olaiwola Okeola2Samad Alaya Adebayo3Oluyemi K. Olanlokun4Abiodun Omodele Eletta5Department of Industrial Chemistry, Faculty of Physical Sciences, University Ilorin, P.M.B1515 Ilorin, Nigeria; Corresponding author.Department of Industrial Chemistry, Faculty of Physical Sciences, University Ilorin, P.M.B1515 Ilorin, NigeriaDepartment of Industrial Chemistry, Faculty of Physical Sciences, University Ilorin, P.M.B1515 Ilorin, NigeriaDepartment of Industrial Chemistry, Faculty of Physical Sciences, University Ilorin, P.M.B1515 Ilorin, NigeriaWater Resources and Environmental Engineering, Faculty of Engineering and Technology, University of Ilorin, P.M.B.1515 Ilorin, NigeriaChemical Engineering, Faculty of Engineering and Technology, University of Ilorin, P.M.B.1515 Ilorin, NigeriaIn the recent time, adsorption is a commonly economical way for removal of pollutants from wastewater. Chlorotriazine has been a serious threat to life of both human and animal. Modified kaolinite clays were separately prepared by chemical impregnation method with 2 M H2SO4 and 2 M NaOH respectively in w/v of 1:2 for a period of 24 h to give unmodified kaolinite (UKC), 2 M H2SO4 modified kaolinite (2-AKC) and 2 Mm3 NaOH modified kaolinite clays (2-BKC) respectively. The UKC with maximum intake value (125.3 mg/g) was derived at equilibrium of 1100 mg/L while 96.65 mg g−1 of 2-AKC was obtained at equilibrium of 500 mg L−1 and that of 2-BKC was found at equilibrium of 700 mg/L. The Langmuir isotherm best explained the removal of Chlorotriazine onto various kaolinite clays while pseudo 2nd order kinetics fitted best. Thus, kaolinite clays have been proved as a potential adsorbent for the removal of chlorotriazine molecules. Keywords: Atrazine, Kaolinite clay, Batch process, Equilibrium, Kineticshttp://www.sciencedirect.com/science/article/pii/S1687428519300305 |
| spellingShingle | Friday Onyekwere Nwosu Oluwaseun Jacob Ajala Fatai Olaiwola Okeola Samad Alaya Adebayo Oluyemi K. Olanlokun Abiodun Omodele Eletta Adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite: Equilibrium, kinetic and thermodynamic studies Egyptian Journal of Aquatic Research |
| title | Adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite: Equilibrium, kinetic and thermodynamic studies |
| title_full | Adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite: Equilibrium, kinetic and thermodynamic studies |
| title_fullStr | Adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite: Equilibrium, kinetic and thermodynamic studies |
| title_full_unstemmed | Adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite: Equilibrium, kinetic and thermodynamic studies |
| title_short | Adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite: Equilibrium, kinetic and thermodynamic studies |
| title_sort | adsorption of chlorotriazine herbicide onto unmodified and modified kaolinite equilibrium kinetic and thermodynamic studies |
| url | http://www.sciencedirect.com/science/article/pii/S1687428519300305 |
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