The brown marine algae “Laminaria digitata” ...
Document type :
Article dans une revue scientifique: Article original
Permalink :
Title :
The brown marine algae “Laminaria digitata” for the outstanding biosorption of methylene blue and reactive blue 19 dyes: kinetics, equilibrium, thermodynamics, regeneration, and mechanism studies
Author(s) :
Bouzikri, Said [Auteur]
Université Chouaib Doukkali [UCD]
Ouasfi, Nadia [Auteur]
Université Chouaib Doukkali [UCD]
Bentiss, Fouad [Auteur]
Université Chouaib Doukkali [UCD]
Jama, charafeddine [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Khamliche, Layachi [Auteur]
Université Chouaib Doukkali [UCD]
Université Chouaib Doukkali [UCD]
Ouasfi, Nadia [Auteur]
Université Chouaib Doukkali [UCD]
Bentiss, Fouad [Auteur]
Université Chouaib Doukkali [UCD]
Jama, charafeddine [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Khamliche, Layachi [Auteur]
Université Chouaib Doukkali [UCD]
Journal title :
Nanotechnology for Environmental Engineering
Abbreviated title :
Nanotechnol. Environ. Eng.
Publisher :
Springer Nature
Publication date :
2023-01-03
ISSN :
2365-6387
English keyword(s) :
Algae
Biosorbent
Biosorption
Dyes
Laminaria digitata
Methylene blue
Reactive blue 19
Biosorbent
Biosorption
Dyes
Laminaria digitata
Methylene blue
Reactive blue 19
HAL domain(s) :
Chimie/Matériaux
English abstract : [en]
In the present work, the brown alga Laminaria digitata (L. Digita) was used as a biosorbent material for the removal of Methylene Blue (MB) and Reactive Blue 19 (RB19) dyes. The L. Digita was characterized by Fourier ...
Show more >In the present work, the brown alga Laminaria digitata (L. Digita) was used as a biosorbent material for the removal of Methylene Blue (MB) and Reactive Blue 19 (RB19) dyes. The L. Digita was characterized by Fourier transform infrared spectroscopy, Scanning electron microscopy coupled with Energy-dispersive X-ray spectroscopy (SEM–EDS), Elemental analysis, Thermogravimetric analysis, and pH of point zero charge. Preliminary tests showed that equilibrium was reached after 15 min of biosorption of the MB and RB19 dyes, and the highest efficiency achieved was 95% and 60%, respectively. The pseudo-second-order kinetic model was the most suitable to fit the experimental data of MB and RB19. The Langmuir model was the most suitable to describe the biosorption equilibrium of MB, with an outstanding maximum biosorption capacity that reached 2976.6 mg/g, while the Freundlich model described the biosorption of RB19. The thermodynamic parameters revealed that the biosorption of MB and RB19 was spontaneous and exothermic in nature. Finally, regeneration tests revealed that the L. Digita algae could be reused effectively four times for MB and twice for RB19. Given the overall obtained results, we can conclude that L. Digita can be used as an effective alternative for the treatment of aqueous solutions containing cationic and anionic dyes.Show less >
Show more >In the present work, the brown alga Laminaria digitata (L. Digita) was used as a biosorbent material for the removal of Methylene Blue (MB) and Reactive Blue 19 (RB19) dyes. The L. Digita was characterized by Fourier transform infrared spectroscopy, Scanning electron microscopy coupled with Energy-dispersive X-ray spectroscopy (SEM–EDS), Elemental analysis, Thermogravimetric analysis, and pH of point zero charge. Preliminary tests showed that equilibrium was reached after 15 min of biosorption of the MB and RB19 dyes, and the highest efficiency achieved was 95% and 60%, respectively. The pseudo-second-order kinetic model was the most suitable to fit the experimental data of MB and RB19. The Langmuir model was the most suitable to describe the biosorption equilibrium of MB, with an outstanding maximum biosorption capacity that reached 2976.6 mg/g, while the Freundlich model described the biosorption of RB19. The thermodynamic parameters revealed that the biosorption of MB and RB19 was spontaneous and exothermic in nature. Finally, regeneration tests revealed that the L. Digita algae could be reused effectively four times for MB and twice for RB19. Given the overall obtained results, we can conclude that L. Digita can be used as an effective alternative for the treatment of aqueous solutions containing cationic and anionic dyes.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
INRAE
ENSCL
CNRS
INRAE
ENSCL
Collections :
Research team(s) :
Procédés de Recyclage et de Fonctionnalisation (PReF)
Submission date :
2023-02-08T17:23:58Z
2023-02-09T12:24:49Z
2023-02-09T12:24:49Z