Biosorption of chromium by alginate extraction products from Sargassum filipendula: investigation of adsorption mechanisms using X-ray photoelectron spectroscopy analysis.
作者： Caroline Bertagnolli , Arnaud Uhart , Jean-Charles Dupin , Meuris Gurgel Carlos Da Silva , Eric Guibal
DOI: 10.1016/J.BIORTECH.2014.04.103
关键词:
摘要: The alginate extraction products from Brazilian brown seaweed Sargassum filipendula were studied for chromium biosorption. Batch experiments conducted at pH 2 and 3 20°C to determine the sorption capacity of this biosorbents (VI) (III). biomass was characterized before after metal binding by X-ray photoelectron spectroscopy (XPS) in order mechanisms residue has a high adsorption capacity, close value obtained with higher than that both Cr(III) Cr(VI). XPS analysis revealed carboxyl, amino sulfonate groups are responsible ions. also indicated Cr(VI) bound reduced Cr(III).
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