Insights into the crystal and aggregate structure of Fe3+ oxide/silica co-precipitates
Structural characteristics of iron (III) oxide/silica co-precipitates were investigated. The association between these materials is relevant to practically all natural aqueous systems due to the prevalence of iron and silicon in the earth’s crust. Crystallographic information is very difficult to ob...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Mineralogical Society of America
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/32419 |
| _version_ | 1848753658212122624 |
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| author | Dyer, Laurence Chapman, K. English, P. Saunders, M. Richmond, William |
| author_facet | Dyer, Laurence Chapman, K. English, P. Saunders, M. Richmond, William |
| author_sort | Dyer, Laurence |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Structural characteristics of iron (III) oxide/silica co-precipitates were investigated. The association between these materials is relevant to practically all natural aqueous systems due to the prevalence of iron and silicon in the earth’s crust. Crystallographic information is very difficult to obtain from these precipitates due to the nanocrystalline nature of ferrihydrite and the amorphous structure of precipitated silica. Several previously undetermined key insights were gained into the structure of iron oxide/silica co-precipitates through this examination. The distribution of iron and silicon throughout co-precipitate particles is illustrated along with the influence of their association. Evidence to the governing factor behind differences in apparent crystallinity is also presented. This information culminates in the formulation of a precipitation pathway, displaying the formation of the co-precipitates. |
| first_indexed | 2025-11-14T08:28:01Z |
| format | Journal Article |
| id | curtin-20.500.11937-32419 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:28:01Z |
| publishDate | 2012 |
| publisher | Mineralogical Society of America |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-324192017-10-02T02:28:10Z Insights into the crystal and aggregate structure of Fe3+ oxide/silica co-precipitates Dyer, Laurence Chapman, K. English, P. Saunders, M. Richmond, William pair distribution function silica co-precipitation Ferrihydrite Structural characteristics of iron (III) oxide/silica co-precipitates were investigated. The association between these materials is relevant to practically all natural aqueous systems due to the prevalence of iron and silicon in the earth’s crust. Crystallographic information is very difficult to obtain from these precipitates due to the nanocrystalline nature of ferrihydrite and the amorphous structure of precipitated silica. Several previously undetermined key insights were gained into the structure of iron oxide/silica co-precipitates through this examination. The distribution of iron and silicon throughout co-precipitate particles is illustrated along with the influence of their association. Evidence to the governing factor behind differences in apparent crystallinity is also presented. This information culminates in the formulation of a precipitation pathway, displaying the formation of the co-precipitates. 2012 Journal Article http://hdl.handle.net/20.500.11937/32419 10.2138/am.2011.3874 Mineralogical Society of America restricted |
| spellingShingle | pair distribution function silica co-precipitation Ferrihydrite Dyer, Laurence Chapman, K. English, P. Saunders, M. Richmond, William Insights into the crystal and aggregate structure of Fe3+ oxide/silica co-precipitates |
| title | Insights into the crystal and aggregate structure of Fe3+ oxide/silica co-precipitates |
| title_full | Insights into the crystal and aggregate structure of Fe3+ oxide/silica co-precipitates |
| title_fullStr | Insights into the crystal and aggregate structure of Fe3+ oxide/silica co-precipitates |
| title_full_unstemmed | Insights into the crystal and aggregate structure of Fe3+ oxide/silica co-precipitates |
| title_short | Insights into the crystal and aggregate structure of Fe3+ oxide/silica co-precipitates |
| title_sort | insights into the crystal and aggregate structure of fe3+ oxide/silica co-precipitates |
| topic | pair distribution function silica co-precipitation Ferrihydrite |
| url | http://hdl.handle.net/20.500.11937/32419 |