Ethylenediaminetriacetic acid-functionalized activated carbon derived from Posidonia oceanica for the removal of Cu(ii).
7 affiliations
- 1University of Gafsa, Faculty of Sciences of Gafsa, Laboratory for the Application of Materials to the Environment, Water and Energy Tunisia.
- 2University of Gafsa, Faculty of Sciences of Gafsa Tunisia [email protected].
- 3University of El Oued, Faculty of Exact Sciences, Chemistry Department El Oued Algeria.
- 4University of El Oued, Faculty of Exact Sciences, Department of Chemistry, VTRS Laboratory El Oued Algeria.
- 5Department of Textile, Higher Institute of Technological Studies of Ksar Hellal Ksar Hellal 5070 Tunisia.
- 6University of Grenoble Alpes, CNRS, Grenoble INP, LGP2 Grenoble F-38000 France.
- 7University of Sfax, Faculty of Sciences of Sfax, Organic Chemistry Laboratory (LR17ES08) Tunisia.
Abstract
Posidonia oceanica, a Mediterranean marine plant, was used in this research to prepare activated carbon. The carbon generated underwent functionalization with ethylenediaminetriacetic acid using N-[(3-trimethoxysilyl)propyl]-ethylenediaminetriacetic acid. The materials were characterized and then used as absorbents to remove copper(ii) ions from water. The Brunauer-Emmett-Teller surface areas were found to be 363 and 346 m² g⁻¹ for activated carbon and functionalized activated carbon, respectively. Adsorption studies were performed under several experimental conditions, such as varying adsorbent dosage, pH, temperature, and time. Kinetic data were fitted using pseudo-first- and pseudo-second-order and intraparticle diffusion kinetic models. The experimental findings were analyzed using the Temkin, Langmuir, Dubinin-Radushkevich, and Freundlich models. The kinetic data were well fitted by the pseudo-second-order model, and the adsorption process was well described by the Langmuir model. The functionalized activated carbon exhibited a higher maximum adsorption capacity of 175.43 mg g⁻¹ for Cu(ii) removal. The Dubinin-Radushkevich model exhibited an adsorption energy of 2.620 kJ mol⁻¹, indicating a physical sorption process. Overall, this study showed that activated carbon derived from Posidonia oceanica and functionalized with ethylenediaminetriacetic acid has the potential to act as an adsorbent for Cu²⁺ removal.
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BibTeX
@article{elhleli2026ethylenediaminetriacetic,
title = {{Ethylenediaminetriacetic acid-functionalized activated carbon derived from Posidonia oceanica for the removal of Cu(ii).}},
author = {Hanedi Elhleli and Najib Mnasri and Salah Neghmouche Nacer and Mohammed Larbi Benamor and Ramzi Khiari and Younes Moussaoui},
journal = {RSC advances},
year = {2026},
month = oct,
doi = {10.1039/d6ra06504j},
url = {https://europepmc.org/article/MED/42835931},
note = {CC BY},
}
RIS
TY - JOUR
TI - Ethylenediaminetriacetic acid-functionalized activated carbon derived from Posidonia oceanica for the removal of Cu(ii).
AU - Hanedi Elhleli
AU - Najib Mnasri
AU - Salah Neghmouche Nacer
AU - Mohammed Larbi Benamor
AU - Ramzi Khiari
AU - Younes Moussaoui
PY - 2026
DA - 2026/10/05
JO - RSC advances
DO - 10.1039/d6ra06504j
UR - https://europepmc.org/article/MED/42835931
AB - Posidonia oceanica, a Mediterranean marine plant, was used in this research to prepare activated carbon. The carbon generated underwent functionalization with ethylenediaminetriacetic acid using N-[(3-trimethoxysilyl)propyl]-ethylenediaminetriacetic acid. The materials were characterized and then used as absorbents to remove copper(ii) ions from water. The Brunauer-Emmett-Teller surface areas were found to be 363 and 346 m² g⁻¹ for activated carbon and functionalized activated carbon, respectively. Adsorption studies were performed under several experimental conditions, such as varying adsorbent dosage, pH, temperature, and time. Kinetic data were fitted using pseudo-first- and pseudo-second-order and intraparticle diffusion kinetic models. The experimental findings were analyzed using the Temkin, Langmuir, Dubinin-Radushkevich, and Freundlich models. The kinetic data were well fitted by the pseudo-second-order model, and the adsorption process was well described by the Langmuir model. The functionalized activated carbon exhibited a higher maximum adsorption capacity of 175.43 mg g⁻¹ for Cu(ii) removal. The Dubinin-Radushkevich model exhibited an adsorption energy of 2.620 kJ mol⁻¹, indicating a physical sorption process. Overall, this study showed that activated carbon derived from Posidonia oceanica and functionalized with ethylenediaminetriacetic acid has the potential to act as an adsorbent for Cu²⁺ removal.
SN - 2046-2069
ER -