The Adsorption of Pentachlorophenol from Aqueous Solutions onto Exchanged Al-MCM-41 Materials
The ability of a mesoporous molecular sieve to adsorb chlorinated phenols was studied experimentally. Thus, the adsorption isotherms of pentachlorophenol (PCP) from aqueous solutions were measured on (M)Al-MCM-41 (M = Na + , K + , Cu 2+ , Cr 3+ ) at intervals of 10 K between 303 K and 323 K. The exp...
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| Format: | Article |
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SAGE Publishing
2004-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361704323150953 |
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| author | Kheira Marouf-Khelifa Amine Khelifa Ahmed Belhakem Reda Marouf Fatiha Abdelmalek Ahmed Addou |
| author_facet | Kheira Marouf-Khelifa Amine Khelifa Ahmed Belhakem Reda Marouf Fatiha Abdelmalek Ahmed Addou |
| author_sort | Kheira Marouf-Khelifa |
| collection | DOAJ |
| description | The ability of a mesoporous molecular sieve to adsorb chlorinated phenols was studied experimentally. Thus, the adsorption isotherms of pentachlorophenol (PCP) from aqueous solutions were measured on (M)Al-MCM-41 (M = Na + , K + , Cu 2+ , Cr 3+ ) at intervals of 10 K between 303 K and 323 K. The experimental isotherms obtained were of the S-type in terms of the classification of Giles and co-workers. The best fit of the adsorption isotherm data was obtained using the Freundlich model. The adsorption affinity of PCP increased in the order (K)Al-MCM-41 < (Cr)Al-MCM-41 < (Na)Al-MCM-41 < (Cu)Al-MCM-41. At the same temperature, the adsorption of PCP on (Cu)Al-MCM-41 was more pronounced compared to its adsorption on alumina-pillared montmorillonite and mesoporous alumina aluminium phosphates. Analysis of the isosteric curves showed that (Cu)Al-MCM-41 and (Na)Al-MCM-41 presented a heterogeneous profile. In contrast, (K)Al-MCM-41 and (Cr)Al-MCM-41 did not exhibit energetic heterogeneity throughout the entire range of coverage. |
| format | Article |
| id | doaj-art-fcb3d9260fcd456586956b6ef09ff891 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2004-02-01 |
| publisher | SAGE Publishing |
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| series | Adsorption Science & Technology |
| spelling | doaj-art-fcb3d9260fcd456586956b6ef09ff8912025-01-03T01:22:46ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382004-02-012210.1260/026361704323150953The Adsorption of Pentachlorophenol from Aqueous Solutions onto Exchanged Al-MCM-41 MaterialsKheira Marouf-Khelifa0Amine Khelifa1Ahmed Belhakem2Reda Marouf3Fatiha Abdelmalek4Ahmed Addou5 Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation (S.T.E.V.A.), Département de Chimie, Université de Mostaganem, Algeria Laboratoire de Structure, Elaboration et Applications des Matériaux Moléculaires (S.E.A.2M.), Département de Chimie, Université de Mostaganem, B.P. 981, R.P., Mostaganem 27000, Algeria Laboratoire de Structure, Elaboration et Applications des Matériaux Moléculaires (S.E.A.2M.), Département de Chimie, Université de Mostaganem, B.P. 981, R.P., Mostaganem 27000, Algeria Laboratoire de Structure, Elaboration et Applications des Matériaux Moléculaires (S.E.A.2M.), Département de Chimie, Université de Mostaganem, B.P. 981, R.P., Mostaganem 27000, Algeria Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation (S.T.E.V.A.), Département de Chimie, Université de Mostaganem, Algeria Laboratoire des Sciences et Techniques de l'Environnement et de la Valorisation (S.T.E.V.A.), Département de Chimie, Université de Mostaganem, AlgeriaThe ability of a mesoporous molecular sieve to adsorb chlorinated phenols was studied experimentally. Thus, the adsorption isotherms of pentachlorophenol (PCP) from aqueous solutions were measured on (M)Al-MCM-41 (M = Na + , K + , Cu 2+ , Cr 3+ ) at intervals of 10 K between 303 K and 323 K. The experimental isotherms obtained were of the S-type in terms of the classification of Giles and co-workers. The best fit of the adsorption isotherm data was obtained using the Freundlich model. The adsorption affinity of PCP increased in the order (K)Al-MCM-41 < (Cr)Al-MCM-41 < (Na)Al-MCM-41 < (Cu)Al-MCM-41. At the same temperature, the adsorption of PCP on (Cu)Al-MCM-41 was more pronounced compared to its adsorption on alumina-pillared montmorillonite and mesoporous alumina aluminium phosphates. Analysis of the isosteric curves showed that (Cu)Al-MCM-41 and (Na)Al-MCM-41 presented a heterogeneous profile. In contrast, (K)Al-MCM-41 and (Cr)Al-MCM-41 did not exhibit energetic heterogeneity throughout the entire range of coverage.https://doi.org/10.1260/026361704323150953 |
| spellingShingle | Kheira Marouf-Khelifa Amine Khelifa Ahmed Belhakem Reda Marouf Fatiha Abdelmalek Ahmed Addou The Adsorption of Pentachlorophenol from Aqueous Solutions onto Exchanged Al-MCM-41 Materials Adsorption Science & Technology |
| title | The Adsorption of Pentachlorophenol from Aqueous Solutions onto Exchanged Al-MCM-41 Materials |
| title_full | The Adsorption of Pentachlorophenol from Aqueous Solutions onto Exchanged Al-MCM-41 Materials |
| title_fullStr | The Adsorption of Pentachlorophenol from Aqueous Solutions onto Exchanged Al-MCM-41 Materials |
| title_full_unstemmed | The Adsorption of Pentachlorophenol from Aqueous Solutions onto Exchanged Al-MCM-41 Materials |
| title_short | The Adsorption of Pentachlorophenol from Aqueous Solutions onto Exchanged Al-MCM-41 Materials |
| title_sort | adsorption of pentachlorophenol from aqueous solutions onto exchanged al mcm 41 materials |
| url | https://doi.org/10.1260/026361704323150953 |
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