RECONSTRUCTION OF CALCINED Zn -Al LAYERED DOUBLE HYDROXIDES DURING TETRACYCLINE ADSORPSION
Zn-Al mixed oxides containing ZnO different degree crystallinity were obtained by calcinations of Zn-Al layered double hydroxides (LDHs). The reconstruction of calcined Zn-Al LDHs has been performed under stirring in aqueous suspensions. The assynthesized LDHs, its decomposition products, as well as...
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| Format: | Article |
| Language: | English |
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Odessa I. I. Mechnikov National University
2015-12-01
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| Series: | Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ |
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| Online Access: | http://heraldchem.onu.edu.ua/article/view/56248 |
| _version_ | 1818790144081133568 |
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| author | G. M. Starukh O. I. Oranska S. I. Levytska |
| author_facet | G. M. Starukh O. I. Oranska S. I. Levytska |
| author_sort | G. M. Starukh |
| collection | DOAJ |
| description | Zn-Al mixed oxides containing ZnO different degree crystallinity were obtained by calcinations of Zn-Al layered double hydroxides (LDHs). The reconstruction of calcined Zn-Al LDHs has been performed under stirring in aqueous suspensions. The assynthesized LDHs, its decomposition products, as well as the reconstructed solids upon hydration were characterized by XRD, N2adsorption, differential and thermal gravimetric analysis. It was found that the ability of Zn-Al LDHs to recover a layered structure under the hydration of mixed oxides depends on the degree of ZnO crystallinity. The partial reconstruction of Zn-Al layered structure occurs in tetracycline solutions irrespective to the degree of ZnO crystallinity in calcined LDHs. Calcined Zn-Al LDHs demonstrate the higher adsorption capacity to tetracycline in comparison with as-prepared Zn-Al LDHs. The adsorption of TC on calcined and uncalcined ZnAl LDHs occurs on the centers of one particular type. It is suggested that surface complexation of the A-ring ligand of TC with Al-OH centers takes place. |
| first_indexed | 2024-12-18T14:50:47Z |
| format | Article |
| id | doaj.art-4691a4f028ca4a0d998a652079d5d814 |
| institution | Directory Open Access Journal |
| issn | 2304-0947 2414-5963 |
| language | English |
| last_indexed | 2024-12-18T14:50:47Z |
| publishDate | 2015-12-01 |
| publisher | Odessa I. I. Mechnikov National University |
| record_format | Article |
| series | Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ |
| spelling | doaj.art-4691a4f028ca4a0d998a652079d5d8142022-12-21T21:04:11ZengOdessa I. I. Mechnikov National UniversityVìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ2304-09472414-59632015-12-01203(55)829310.18524/2304-0947.2015.3(55).5624856248RECONSTRUCTION OF CALCINED Zn -Al LAYERED DOUBLE HYDROXIDES DURING TETRACYCLINE ADSORPSIONG. M. Starukh0O. I. Oranska1S. I. Levytska2Інститут хімії поверхні ім. О. О. Чуйка НАН України, вул. Генерала НаумоваІнститут хімії поверхні ім. О. О. Чуйка НАН України, вул. Генерала НаумоваІнститут сорбції та проблем ендоекології НАН України; Інститут хімії поверхні ім. О. О. Чуйка НАН УкраїниZn-Al mixed oxides containing ZnO different degree crystallinity were obtained by calcinations of Zn-Al layered double hydroxides (LDHs). The reconstruction of calcined Zn-Al LDHs has been performed under stirring in aqueous suspensions. The assynthesized LDHs, its decomposition products, as well as the reconstructed solids upon hydration were characterized by XRD, N2adsorption, differential and thermal gravimetric analysis. It was found that the ability of Zn-Al LDHs to recover a layered structure under the hydration of mixed oxides depends on the degree of ZnO crystallinity. The partial reconstruction of Zn-Al layered structure occurs in tetracycline solutions irrespective to the degree of ZnO crystallinity in calcined LDHs. Calcined Zn-Al LDHs demonstrate the higher adsorption capacity to tetracycline in comparison with as-prepared Zn-Al LDHs. The adsorption of TC on calcined and uncalcined ZnAl LDHs occurs on the centers of one particular type. It is suggested that surface complexation of the A-ring ligand of TC with Al-OH centers takes place.http://heraldchem.onu.edu.ua/article/view/56248Zn-Al шаруваті подвійні гідроксиди, реконструкція шаруватої структури, тетрациклін, адсорбція |
| spellingShingle | G. M. Starukh O. I. Oranska S. I. Levytska RECONSTRUCTION OF CALCINED Zn -Al LAYERED DOUBLE HYDROXIDES DURING TETRACYCLINE ADSORPSION Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ Zn-Al шаруваті подвійні гідроксиди, реконструкція шаруватої структури, тетрациклін, адсорбція |
| title | RECONSTRUCTION OF CALCINED Zn -Al LAYERED DOUBLE HYDROXIDES DURING TETRACYCLINE ADSORPSION |
| title_full | RECONSTRUCTION OF CALCINED Zn -Al LAYERED DOUBLE HYDROXIDES DURING TETRACYCLINE ADSORPSION |
| title_fullStr | RECONSTRUCTION OF CALCINED Zn -Al LAYERED DOUBLE HYDROXIDES DURING TETRACYCLINE ADSORPSION |
| title_full_unstemmed | RECONSTRUCTION OF CALCINED Zn -Al LAYERED DOUBLE HYDROXIDES DURING TETRACYCLINE ADSORPSION |
| title_short | RECONSTRUCTION OF CALCINED Zn -Al LAYERED DOUBLE HYDROXIDES DURING TETRACYCLINE ADSORPSION |
| title_sort | reconstruction of calcined zn al layered double hydroxides during tetracycline adsorpsion |
| topic | Zn-Al шаруваті подвійні гідроксиди, реконструкція шаруватої структури, тетрациклін, адсорбція |
| url | http://heraldchem.onu.edu.ua/article/view/56248 |
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