Preparation and Characterization of  an Activated Carbon Based on  Coconut Shell for the Elimination  of 2,4-Dichlorophenoxyacetic  Acid in Aqueous Medium

Dibi Kouadio; Meite Ladji; DIARRA Moussa; Aboua Kouassi Narcisse; N’GUETTIA Kossonou Roland; Soro Donafologo Baba; Mamadou Koné

doi:10.9734/CSJI/2025/v34i1949

Research Article Open access CC BY 4.0

Preparation and Characterization of an Activated Carbon Based on Coconut Shell for the Elimination of 2,4-Dichlorophenoxyacetic Acid in Aqueous Medium

Dibi Kouadio, Meite Ladji, DIARRA Moussa, Aboua Kouassi Narcisse, N’GUETTIA Kossonou Roland, Soro Donafologo Baba, Mamadou Koné

Chemical Science International Journal · pp. 81–94 · Published 4 Feb 2025

10.9734/CSJI/2025/v34i1949

Abstract

The objective of this work is to evaluate the capacity of activated carbon prepared from coconut shells to eliminate 2,4-dichlorophenoxyacetic acid from aqueous solution. The characterization tests revealed that the specific surface area determined by the BET method is 570 m²/g consisting essentially of micropores. The chemical characteristics determined by the Boehm method indicate the acidic character of the carbon. The 2,4- dichlorophenoxyacetic acid adsorption tests revealed that the adsorption rate of 2,4- dichlorophenoxyacetic acid increases with increasing contact time, but decreases with increasing initial concentration. To do this with a mass of 0.5 g, for a concentration of 5 mg/l for a 100 min agitation time, the rate of elimination of the 2.4-D reaches 77 %. The adsorption capacity studied showed that the adsorption process of 2,4-D on activated carbon is controlled by pseudo-second order kinetics.

2,4-dichlorophenoxyacetic acid coconut shells activated carbon adsorption kinetics phosphoric acid

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Dibi Kouadio, Meite Ladji, DIARRA Moussa, Aboua Kouassi Narcisse, N’GUETTIA Kossonou Roland, Soro Donafologo Baba, Mamadou Koné (2025). Preparation and Characterization of an Activated Carbon Based on Coconut Shell for the Elimination of 2,4-Dichlorophenoxyacetic Acid in Aqueous Medium. Chemical Science International Journal , 81–94. https://doi.org/10.9734/CSJI/2025/v34i1949

Affiliations

Dibi Kouadio — Laboratoire des Sciences de l’Environnement, Université Nangui Abrogoua 02 BP 801 Abidjan 02, Côte d’Ivoire.
Meite Ladji — Laboratoire des Sciences de l’Environnement, Université Nangui Abrogoua 02 BP 801 Abidjan 02, Côte d’Ivoire.
DIARRA Moussa — Laboratoire des Sciences et Technologie de l’Environnement, Université Jean Lorougnon GUEDE BP 150 Daloa, Côte d’Ivoire.
Aboua Kouassi Narcisse — Laboratoire des Sciences de l’Environnement, Université Nangui Abrogoua 02 BP 801 Abidjan 02, Côte d’Ivoire.
N’GUETTIA Kossonou Roland — Laboratoire des Sciences de l’Environnement, Université Nangui Abrogoua 02 BP 801 Abidjan 02, Côte d’Ivoire.
Soro Donafologo Baba — Laboratoire des Sciences de l’Environnement, Université Nangui Abrogoua 02 BP 801 Abidjan 02, Côte d’Ivoire.
Mamadou Koné — Laboratoire des Sciences de l’Environnement, Université Nangui Abrogoua 02 BP 801 Abidjan 02, Côte d’Ivoire.

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