Removal of Cr(VI) and Au(III) from aqueous streams by the use of carbon nanoadsorption technology

descriptionPublicationkeyboard_double_arrow_right Article 01 Feb 2017 English Publisher:Elsevier BVJournal:Desalination and Water Treatment, volume 63, pages 351-356 (issn: 1944-3986,

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Authors: Alguacil, Francisco José; García-Díaz, Irene; López Gómez, Félix Antonio; Rodríguez-Largo, Olga;

doi: 10.5004/dwt.2017.0264

handle: 10261/154059

Removal of Cr(VI) and Au(III) from aqueous streams by the use of carbon nanoadsorption technology

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Abstract

The potential of adsorptive removal of Cr(VI) (hazardous element) and Au(III) (valuable element), from aqueous solutions, with carbon nanotubes was investigated. Kinetic experiments were performed in order to investigate the influence of different variables on the adsorption kinetics, that is, the stirring speed (250–2,000 min) and adsorbent dosage (0.25–1.5 g L) in the case of chromium(VI) as well as temperature (20°C–60°C) and HCl (0.1–10 M) concentration in the case of gold(III).

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Keywords

Kinetics, Gold(III), Carbon nanotubes, Adsorption, Chromium(VI)

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