Influence of Metal Ions on the Transformation of Artificial Schwertmannite Rust Particles into α‐FeOOH
-
- Muguruma Miya
- Graduate School of Science and Engineering, Shimane University
-
- Tanaka Hidekazu
- Graduate School of Science and Engineering, Shimane University
-
- Ishikawa Tatsuo
- Osaka University of Education
-
- Nakayama Takenori
- Materials Research laboratory, Kobe Steel, LTD.
Bibliographic Information
- Other Title
-
- 人工鉄さびSchwertmanniteのα‐FeOOHへの転移に対する金属イオンの影響
- 人工鉄さびSchwertmanniteのα-FeOOHへの転移に対する金属イオンの影響
- ジンコウテツサビ Schwertmannite ノ a-FeOOH エ ノ テンイ ニ タイスル キンゾク イオン ノ エイキョウ
- Influence of metal ions on the transformation of artificial Schwertmannite rust particles into α-FeOOH
Search this article
Abstract
To simulate the atmospheric corrosion of weathering steel, artificial Schwertmannite (Fe8O8(OH)6(SO4)) rust particles were synthesized by aerial oxidation of aqueous FeSO4 solution in the presence of metal ions such as Cr(III), Cu(II) and Ni(II), and the transformation behavior of metal-doped Schwertmannite into α-FeOOH was examined at different pH. No remarkable change in crystallinity of Schwertmannite was recognized by addition of Cr(III), Cu(II) and Ni(II). The Schwertmannite prepared without adding metal ions was needle-like particles with a length of ca. 265 nm. The added Cr(III) would be incorporated by substituting for Fe(III) in Schwertmannite crystal, leading to the reduction of particle size of this material. The Cu(II) and Ni(II) in the solution were less easily incorporated in the particles than Fe(III), although growth of the Schwertmannite particles was slightly suppressed by Cu(II). The Schwertmannite particles were transformed into α-FeOOH at pH=3-11. Incorporation of metal ions into Schwertmannite suppressed the transformation into α-FeOOH. Especially, added Cr(III) strongly inhibited the transformation over the whole pH ranges. These results allow us to infer that metals alloying with weathering steel strongly affect the formation of α-FeOOH rust from Schwertmannite and the effect is in order of Cr(III)>>Cu(II)>Ni(II).
Journal
-
- Zairyo-to-Kankyo
-
Zairyo-to-Kankyo 64 (6), 235-239, 2015
Japan Society of Corrosion Engineering
- Tweet
Details 詳細情報について
-
- CRID
- 1390001206258260096
-
- NII Article ID
- 130005120126
-
- NII Book ID
- AN10235427
-
- ISSN
- 18819664
- 09170480
-
- NDL BIB ID
- 026562677
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed