Remediation of Cr(VI) by biogenic magnetic nanoparticles: An x-ray magnetic circular dichroism study

Telling, N. D.; Coker, V. S.; Cutting, R. S.; van der Laan, G.; Pearce, C. I.; Pattrick, R. A. D.; Arenholz, E.; Lloyd, J. R.

Abstract

Biologically synthesized magnetite
nanoparticles are studied using x-ray absorption and x-ray magnetic circular dichroism following exposure to hexavalent Cr solution. By examining their magnetic state, Cr cations are shown to exist in trivalent form on octahedral sites within the magnetite spinel surface. The possibility of reducing toxic Cr(VI) into a stable, nontoxic form, such as a
-spinel layer, makes biogenic magnetite nanoparticles an attractive candidate for Cr remediation.

Citation

Telling, N. D., Coker, V. S., Cutting, R. S., van der Laan, G., Pearce, C. I., Pattrick, R. A. D., Arenholz, E., & Lloyd, J. R. (2009). Remediation of Cr(VI) by biogenic magnetic nanoparticles: An x-ray magnetic circular dichroism study. Applied Physics Letters, 95(16), https://doi.org/10.1063/1.3249578

• Journal Article Type: Article
• Acceptance Date: Sep 24, 2009
• Online Publication Date: Oct 21, 2009
• Publication Date: Oct 19, 2009
• Deposit Date: May 22, 2024
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Electronic ISSN: 1077-3118
• Publisher: AIP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 95
• Issue: 16
• DOI: https://doi.org/10.1063/1.3249578
• Keywords: Spintronic devices, Sample handling, Biogeosciences, Nanoparticle, Minerals, X-ray magnetic circular dichroism spectroscopy, Redox reactions, X-ray absorption spectroscopy, Diseases and conditions, Statistical mechanics models
• Public URL: https://keele-repository.worktribe.com/output/831093