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Structural evolution from iron sulfide nanoparticle to pyrite
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- Sano Yoshinari
- Graduate School of Life and Environmental Sciences, University of Tsukuba
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- Kyono Atsushi
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Takagi Sota
- Graduate School of Life and Environmental Sciences, University of Tsukuba
Bibliographic Information
- Other Title
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- 硫化鉄ナノ粒子から黄鉄鉱への結晶構造変化
Description
FeS nanoparticle, known as a precursor of pyrite, is formed in anaerobic marine sediments. In this study, we investigated structural changes from the FeS nanoparticle to pyrite by using hydrothermal experiment, synchrotron XRD measurement, and XAFS measurement. The XRD pattern of synthesized FeS nanoparticle corresponds to that of nanocrystalline mackinawite. The mackinawite transforms to pyrite by the addition of sulfur, but it partially transforms to greigite. While the coordination of Fe changes from FeS4 tetrahedron to FeS6 octahedron, the valence of Fe remains divalent.
Journal
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- Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
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Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences 2018 (0), 64-, 2018
Japan Association of Mineralogical Sciences
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Details 詳細情報について
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- CRID
- 1390283659840006144
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- NII Article ID
- 130007786149
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed