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Sorption of AsV on aluminosilicates treated with FeII nanoparticles by Barbora Doušová; Tomáš Grygar; Alexandr Martaus; Lucie Fuitová; David Koloušek; Vladimír Machovič is a Chemistry article available to read on EtoBox.

What is Sorption of AsV on aluminosilicates treated with FeII nanoparticles about?

Adsorption of arsenic on clay surfaces is important for the natural and simulated removal of arsenic species from aqueous environments. In this investigation, three samples of clay minerals (natural metakaoline, natural clinoptilolite-rich tuff, and synthetic zeolite) in both untreated and Fe-treated forms were used for the sorption of arsenate from model aqueous solution. The treatment of minerals consisted of exposing them to concentrated solution of Fe II . Within this process the mineral surface has been laden with Fe III oxi(hydroxides) whose high affinity for the As V adsorption is well known. In all investigated systems the sorption capacity of Fe II -treated sorbents increased significantly in comparison to the untreated material (from about 0.5 to >20.0 mg/g, which represented more than 95% of the total As removal). The changes of Fe-bearing particles in the course of treating process and subsequent As sorption were investigated by the diffuse reflectance spectroscopy and the voltammetry of microparticles. IR spectra of treated and As V -saturated solids showed characteristic bands caused by Fe III -SO 4 , Fe III -O, and As-O vibrations. In untreated As V -saturated solids

Who reads Sorption of AsV on aluminosilicates treated with FeII nanoparticles?

Author

Barbora Doušová; Tomáš Grygar; Alexandr Martaus; Lucie Fuitová; David Koloušek; Vladimír Machovič

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0021-9797)

Published

2006

Language

EN

Field

Chemistry (Physical Sciences)