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Transformation of γ-FeO(OH) to Fe3O4by adsorption of iron(II) ion on γ-FeO(OH)
Abstract
When the pH of a reaction mixture of γ-FeO(OH) and the iron(II) ion is raised from 5 to 9, the γ-FeO(OH) is transformed to stoicheiometric Fe3O4 at 25 °C. The transformation reaction is triggered by the adsorption of the iron(II) ion on γ-FeO(OH) at a pH above 7.3, and the adsorbed FeII–γ-FeO(OH) is subsequently transformed to Fe3O4. In each step, one proton is released, a total of two protons being released in the reaction. The reaction of the transformation step is written as follows: [γ-FeO(OH)]2FeOH+→ Fe3O4+ H2O + H+ and includes a dissolution–precipitation process. The adsorption of iron(II) ion on Fe3O4 seems to take place along with the formation of the intermediate by the adsorption of iron(II) ion on γ-FeO(OH).
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Citations
Cited by
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Archibald, D. D., & Mann, S. (1993) · Nature · doi:10.1038/364430a0 · Cited by 323
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Ona-Nguema, G., Abdelmoula, M., Jorand, F., Benali, O., Antoine Géhin, Block, J.-C., & Génin, J.-M. R. (2002) · Environmental Science & Technology · doi:10.1021/es0020456 · Cited by 189
Saldi, G. D., Daval, D., Morvan, G., & Knauss, K. G. (2013) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2013.04.029 · Cited by 113
Metadata
- Authors
- Tamaura, Y., Ito, K., & Katsura, T.
- Venue
- J. Chem. Soc., Dalton Trans.
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 1983
- Issue
- 2
- Pages
- 189-194
- ISSN
- 1364-5447 (ISSN-L)
- 0300-9246
- OpenAlex
- W2046359620
- Cited by
- 162
- References
- 0
- FWCI
- 4.58
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Transformation of γ-FeO(OH) to Fe3O4by adsorption of iron(II) ion on γ-FeO(OH). https://app.cochat.ai/papers/10.1039/dt9830000189
- The paper
- Tamaura, Y., Ito, K., & Katsura, T. (1983). Transformation of γ-FeO(OH) to Fe3O4by adsorption of iron(II) ion on γ-FeO(OH). J. Chem. Soc., Dalton Trans. https://doi.org/10.1039/dt9830000189
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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