期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2016
卷号：7
期号：5
页码：1661-1668
出版社：University of Mohammed Premier Oujda
摘要：The presence of metal ions in aqueous solutions represents, nowadays a major environmental problem. The presence study investigates the potential adsorption capacity of Sargassum vulgare for the removal of iron (III) ions from aqueous solution. The elaborated adsorbent was characterized using FTIR analysis, in order to reveal the presence of functional groups. Batch adsorption experiments were carried out to evaluate the effect of process parameter such as pH, contact time and adsorbent dosage on removal capacity. The optimum removal of iron (III) ions was obtained at pH 3, adsorbent dose of 5 g/L and equilibrium time of 120 min. Kinetic data were successfully described with pseudo-first order and pseudo-second order models. The results showed that the kinetic biosorption process of Fe (III) followed pseudo first order with (R 2 = 0.99 and k = 0.056). The biosorption equilibrium was studied using Langmuir and Freundlich models. Biosorption of Iron (III) onto Sargassum vulgare biomass followed the Langmuir isotherm (R 2 = 0.99) with a maximum biosorption capacity of (q e = 63.67 mg/g).
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