Iron L-edge and sulfur K-edge XANES spectroscopy analysis of pyrite leached by Acidianus manzaensis
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)
刊名TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2015
卷号25期号:7页码:2407-2414
关键词pyrite bioleaching chemical speciation XANES Acidianus manzaensis
学科分类Metallurgy & Metallurgical Engineering
DOI10.1016/S1003-6326(15)63856-0
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
文章类型Article
英文摘要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.
类目[WOS]Metallurgy & Metallurgical Engineering
收录类别SCI ; EI
WOS记录号WOS:000359325300037
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228691
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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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.
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.
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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