The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Redox Transformation of Arsenic by Fe(II)-Activated Goethite (α-FeOOH)
Abstract
The redox state and speciation of the metalloid arsenic (As) determine its environmental fate and toxicity. Knowledge about biogeochemical processes influencing arsenic redox state is therefore necessary to understand and predict its environmental behavior. Here we quantified arsenic redox changes by pH-neutral goethite [alpha-Fe(III)OOH] mineral suspensions amended with Fe(II) using wet-chemical and synchrotron X-ray absorption (XANES) analysis. Goethite itself did not oxidize As(III) and, in contrast to thermodynamic predictions, Fe(II)-goethite systems did not reduce As(V). However, we observed rapid oxidation of As(III) to As(V) in Fe(II)-goethite systems. Mössbauer spectroscopy showed initial formation of (57)Fe-goethite after (57)Fe(II) addition plus a so far unidentified additional Fe(II) phase. No other Fe(III) phase could be detected by Mössbauer, EXAFS, SEM, XRD, or HR-TEM. This suggests that reactive Fe(III) species form as an intermediate Fe(III) phase upon Fe(II) addition and electron transfer into bulk goethite but before crystallization of the newly formed Fe(III) as goethite. In summary this study indicates that in the simultaneous presence of Fe(III) oxyhydroxides and Fe(II), as commonly observed in environments inhabited by iron-reducing microorganisms, As(III) oxidation can occur. This potentially explains the presence of As(V) in reduced groundwater aquifers.
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Cites
Role of metal-reducing bacteria in arsenic release from Bengal delta sediments
Islam, F. S., Gault, A. G., Boothman, C., Polya, D. A., Charnock, J. M., Chatterjee, D., & Lloyd, J. R. (2004) · Nature · doi:10.1038/nature02638 · Cited by 1,241
Near-surface wetland sediments as a source of arsenic release to ground water in Asia
Polizzotto, M. L., Kocar, B. D., Benner, S. G., Sampson, M., & Fendorf, S. (2008) · Nature · doi:10.1038/nature07093 · Cited by 574
Arsenic, microbes and contaminated aquifers
Oremland, R. S., & Stolz, J. F. (2005) · Trends in Microbiology · doi:10.1016/j.tim.2004.12.002 · Cited by 515
Katsoyiannis, I. A., Ruettimann, T., & Hug, S. J. (2008) · Environmental Science & Technology · doi:10.1021/es800649p · Cited by 463
Kocar, B. D., Herbel, M. J., Tufano, K. J., & Fendorf, S. (2006) · Environmental Science & Technology · doi:10.1021/es061540k · Cited by 258
Mineralogical and geomicrobiological investigations on groundwater arsenic enrichment in Bangladesh
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Solid-phases and desorption processes of arsenic within Bangladesh sediments
Polizzotto, M. L., Harvey, C. F., Li, G., Badruzzman, B., Ali, A., Newville, M., Sutton, S., & Fendorf, S. (2006) · Chemical Geology · doi:10.1016/j.chemgeo.2005.11.026 · Cited by 194
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Cited by
Biogeochemical Redox Processes and their Impact on Contaminant Dynamics
Borch, T., Kretzschmar, R., Kappler, A., Cappellen, P. V., Ginder-Vogel, M., Voegelin, A., & Campbell, K. (2010) · Environmental Science & Technology · doi:10.1021/es9026248 · Cited by 1,456
Self-citationAlleviation of Heavy Metal Stress in Plants and Remediation of Soil by Rhizosphere Microorganisms
Mishra, J., Singh, R., & Arora, N. K. (2017) · Frontiers in Microbiology · doi:10.3389/fmicb.2017.01706 · Cited by 573
Boland, D. D., Collins, R. N., Miller, C. J., Glover, C. J., & Waite, T. D. (2014) · Environmental Science & Technology · doi:10.1021/es4043275 · Cited by 406
Suda, A., & Makino, T. (2016) · Geoderma · doi:10.1016/j.geoderma.2015.12.017 · Cited by 357
Effects of water chemistry on arsenic removal from drinking water by electrocoagulation
Wan, W., Pepping, T. J., Banerji, T., Chaudhari, S., & Giammar, D. E. (2011) · Water Research · doi:10.1016/j.watres.2010.08.016 · Cited by 262
Metadata
- Authors
- Amstaetter, K., Borch, T., Larese-Casanova, P., & Kappler, A.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-10-07
- Volume
- 44
- Issue
- 1
- Pages
- 102-108
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W1994025773
- Cited by
- 334
- References
- 8
- FWCI
- 10.16
- Type
- journal article
- Language
- en
- Open access
- closed
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- Amstaetter, K., Borch, T., Larese-Casanova, P., & Kappler, A. (2010). Redox Transformation of Arsenic by Fe(II)-Activated Goethite (α-FeOOH). Environmental Science & Technology. https://doi.org/10.1021/es901274s
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