L’adsorption d’une solution aqueuse d’iode a été étudiée, en régime discontinu, sur quatre échantillons de charbons actifs des résidus de Moabi (Baillonella toxisperma Pierre) d’origine camerounaise (C1, C2, C3, C4) et sur trois échantillons de charbons actifs commerciaux (C5, C6, C7). Le calcul de l’indice d’iode et l’analyse des isothermes d’adsorption par utilisation des théories de Langmuir et de Freundlich ont permis de déterminer le type d’adsorption. Il apparaît que la valeur de l’indice d’iode de l’un des échantillons des charbons des résidus de Moabi (C4) est proche des valeurs de celui des échantillons commerciaux. De plus, l’adsorption de l’iode obéit aux isothermes de Langmuir avec des capacités maximales d’adsorption variant entre 9,35 mmol∙g‑1 (C4) et 13,18 mmol∙g‑1 (C7).The removal of iodine through adsorption on four types of activated carbon (C1, C2, C3, C4) obtained from local Cameroonian Moabi (Baillonella toxisperma Pierre) residues and on three commercial activated carbons (C5, C6, C7) was studied in a batch mode. The calculation of the iodine index and the analysis of adsorption isotherms obtained using the Langmuir and Freundlich theories allow for the determination of the classification of adsorption. It was found that the iodine index of one activated carbon obtained from Moabi residues (C4) is near to those obtained for the commercial activated carbons. Moreover, the iodine adsorption is clearly described by the Langmuir theory with the maximum capacity of adsorption varying between 9.35 mmol∙g‑1 (C4) and 13.18 mmol∙g‑1 (C7)
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