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Chromium(VI) sorptive removal from aqueous solutions by nanocrystalline akaganèite.
Chemosphere. 2005 Jan; 58(1):65-73.C

Abstract

In this study, akaganeite (beta-FeO(OH)) an ironoxyhydroxide material, was used as a low-cost potential adsorbent for the removal of hexavalent chromium from aqueous solutions. The influence of agitation speed, solution pH, initial chromium concentration, sorbent concentration and temperature were evaluated at batch kinetic runs. It was shown that the solid diffusion model, in comparison to simple reaction kinetic models, described better the sorption kinetics. Freundlich and Frumkin isotherm best fitted the equilibrium results. Akaganeite presented a sorption capacity approximately 80 mg Cr(VI) g(-1), under the conditions studied. Flotation was used as a downstream process for the effective removal of the loaded material.

Authors+Show Affiliations

Division of Chemical Technology, School of Chemistry, Aristotle University, Box 116, GR-54124 Thessaloniki, Greece. nlazarid@chem.auth.grNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15522334

Citation

Lazaridis, N K., et al. "Chromium(VI) Sorptive Removal From Aqueous Solutions By Nanocrystalline Akaganèite." Chemosphere, vol. 58, no. 1, 2005, pp. 65-73.
Lazaridis NK, Bakoyannakis DN, Deliyanni EA. Chromium(VI) sorptive removal from aqueous solutions by nanocrystalline akaganèite. Chemosphere. 2005;58(1):65-73.
Lazaridis, N. K., Bakoyannakis, D. N., & Deliyanni, E. A. (2005). Chromium(VI) sorptive removal from aqueous solutions by nanocrystalline akaganèite. Chemosphere, 58(1), 65-73.
Lazaridis NK, Bakoyannakis DN, Deliyanni EA. Chromium(VI) Sorptive Removal From Aqueous Solutions By Nanocrystalline Akaganèite. Chemosphere. 2005;58(1):65-73. PubMed PMID: 15522334.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Chromium(VI) sorptive removal from aqueous solutions by nanocrystalline akaganèite. AU - Lazaridis,N K, AU - Bakoyannakis,D N, AU - Deliyanni,E A, PY - 2003/11/11/received PY - 2004/09/06/revised PY - 2004/09/07/accepted PY - 2004/11/4/pubmed PY - 2005/2/5/medline PY - 2004/11/4/entrez SP - 65 EP - 73 JF - Chemosphere JO - Chemosphere VL - 58 IS - 1 N2 - In this study, akaganeite (beta-FeO(OH)) an ironoxyhydroxide material, was used as a low-cost potential adsorbent for the removal of hexavalent chromium from aqueous solutions. The influence of agitation speed, solution pH, initial chromium concentration, sorbent concentration and temperature were evaluated at batch kinetic runs. It was shown that the solid diffusion model, in comparison to simple reaction kinetic models, described better the sorption kinetics. Freundlich and Frumkin isotherm best fitted the equilibrium results. Akaganeite presented a sorption capacity approximately 80 mg Cr(VI) g(-1), under the conditions studied. Flotation was used as a downstream process for the effective removal of the loaded material. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/15522334/Chromium_VI__sorptive_removal_from_aqueous_solutions_by_nanocrystalline_akaganèite_ DB - PRIME DP - Unbound Medicine ER -