Factors governing formation of todorokite at atmospheric pressure | |
Cui, HJ; Feng, XH; Liu, F; Tan, WF; He, JZ | |
2005 | |
Source Publication | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
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Volume | 48Issue:10Pages:1678-1689 |
Abstract | Todorokite commonly occurs in Earth surface environments. The factors governing formation of todorokite, such as reaction temperature, metal ions, dissolved O-2 and pH, were investigated in this paper. Results showed that the forming rate of todorokite and its crystallinity decreased with falling reaction temperature, and the effect of temperature was more significant than that of other parameters. Nature of metal ions in the interlayer of buserite precursor and the structure of the buserite precursor obviously affected buserite transformation into todorokite. Weak bonding between the metal ions and MnO6 layer of buserite was favorable to todorokite formation. The rate of todorokite formation was promoted at a lower temperature with appropriate bubbling of O-2. The pH in the system slightly influenced the todorokite formation, and todorokite could also be formed in a weak alkali medium or in a slightly acidic medium. Aged buserite precursor more easily form todorokite than the unaged one. |
Department | 土壤环境科学实验室 |
Keyword | Todorokite Buserite Manganese Oxide Mineral Atmospheric Pressure Transformation |
WOS Research Area | Geology |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | https://ir.rcees.ac.cn/handle/311016/23344 |
Collection | 土壤环境科学实验室 |
Recommended Citation GB/T 7714 | Cui, HJ,Feng, XH,Liu, F,et al. Factors governing formation of todorokite at atmospheric pressure[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2005,48(10):1678-1689. |
APA | Cui, HJ,Feng, XH,Liu, F,Tan, WF,&He, JZ.(2005).Factors governing formation of todorokite at atmospheric pressure.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,48(10),1678-1689. |
MLA | Cui, HJ,et al."Factors governing formation of todorokite at atmospheric pressure".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 48.10(2005):1678-1689. |
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