| Iron L-edge and sulfur K-edge XANES spectroscopy analysis of pyrite leached by Acidianus manzaensis |
| 其他题名 | Acidianus manzaensis浸出黄铁矿过程中铁L边和硫K边XANES光谱学分析
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| Liu, HC; Xia, JL; Nie, ZY; Ma, YL; Ma, CY; Zheng, L; Hong, CH; Zhao, YD; Ma CY(马陈燕) ; Zheng L(郑雷); Hong CH(洪才浩); Zhao YD(赵屹东)
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| 2015
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| 发表期刊 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
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| 卷号 | 25期号:7页码:2407-2414 |
| 文章类型 | Article
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| 摘要 | Iron L-edge and sulfur K-edge X-ray absorption near edge structure (XANES) spectroscopy analysis of pyrite leached by extreme thermophilic Archaea strain Acidianus manzaensis (A. manzaensis) was carried out. Leaching experiments show that the oxidation of pyrite can be accelerated by A. manzaensis. Leaching results show that with the increase of leaching time, pH value in the leaching solution gradually decreases, redox potential increases rapidly from day 0 to day 3, and then increases slowly. The SEM results show that the pyrite surfaces are corroded gradually by A. manzaensis, and the XRD results show that the leaching residues contain new compositions of jarosite and elemental sulfur (S-0). The iron L-edge XANES spectroscopy analysis of pyrite during biooxidation indicates that pyrite is gradually converted to Fe(III)-containing species. The sulfur K-edge XANES spectroscopy analysis indicates that elemental sulfur is produced during bioleaching and maintains mass fractions of 3.2%-5.9%. Sodium thiosulfate was also detected from day 2 to day 4, indicating the existence of thiosulfate during biooxidation of pyrite. |
| 关键词 | pyrite
bioleaching
chemical speciation
XANES
Acidianus manzaensis
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| 学科领域 | Metallurgy & Metallurgical Engineering
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| DOI | 10.1016/S1003-6326(15)63856-0
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| 收录类别 | SCI
; EI
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| WOS类目 | Metallurgy & Metallurgical Engineering
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| WOS记录号 | WOS:000359325300037
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/228691
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| 专题 | 多学科研究中心
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推荐引用方式
GB/T 7714 |
Liu, HC,Xia, JL,Nie, ZY,et al. Iron L-edge and sulfur K-edge XANES spectroscopy analysis of pyrite leached by Acidianus manzaensis[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2015,25(7):2407-2414.
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| APA |
Liu, HC.,Xia, JL.,Nie, ZY.,Ma, YL.,Ma, CY.,...&赵屹东.(2015).Iron L-edge and sulfur K-edge XANES spectroscopy analysis of pyrite leached by Acidianus manzaensis.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,25(7),2407-2414.
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| MLA |
Liu, HC,et al."Iron L-edge and sulfur K-edge XANES spectroscopy analysis of pyrite leached by Acidianus manzaensis".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 25.7(2015):2407-2414.
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