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Modes of occurrence of arsenic in high-arsenic coal by extended X-ray absorption fine structure spectroscopy
Zhao, FH; Ren, DY; Zheng, BS; Hu, TD; Liu, T; Hu TD(胡天斗); Liu T(刘涛)
1998
发表期刊CHINESE SCIENCE BULLETIN
卷号43期号:19页码:1660-1663
通讯作者China Univ Min & Technol, Beijing 100083, Peoples R China ; Chinese Acad Sci, Inst Geochem, Guiyang 550002, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
文章类型Article
摘要The concentration ranges of As and Sb in six Late Permian high-arsenic coals collected from Xingren and Xingyi, Guizhou Province are 94.1 mu g.g(-1)-3.2% and 8.1 mu g.g(-1)-120 mu g.g(-1), respectively. Based on the mineralogical analysis, no arsenic and arsenic-bearing minerals are detected in these samples and arsenic occurs in coal macerals. By extended X-ray absorption fine structure(EXAFS) spectroscopy, we have found that arsenic in these high-arsenic coal samples coordinates with oxygen; the coordination number of As with oxygen for these samples is 4 except one sample(H(9)) for which the coordination number of As is 3. Therefore, arsenic in these high-arsenic coals does not occur in sulfide minerals, but occurs in arsenate or arsenite phase, and the preponderance of As is in arsenate of As(5+).
关键词high-arsenic coal modes of occurrence synchrotron radiation EXAFS spectroscopy
学科领域Science & Technology - Other Topics
DOI10.1007/BF02883414
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语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000076897800016
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239462
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Zhao, FH,Ren, DY,Zheng, BS,et al. Modes of occurrence of arsenic in high-arsenic coal by extended X-ray absorption fine structure spectroscopy[J]. CHINESE SCIENCE BULLETIN,1998,43(19):1660-1663.
APA Zhao, FH.,Ren, DY.,Zheng, BS.,Hu, TD.,Liu, T.,...&刘涛.(1998).Modes of occurrence of arsenic in high-arsenic coal by extended X-ray absorption fine structure spectroscopy.CHINESE SCIENCE BULLETIN,43(19),1660-1663.
MLA Zhao, FH,et al."Modes of occurrence of arsenic in high-arsenic coal by extended X-ray absorption fine structure spectroscopy".CHINESE SCIENCE BULLETIN 43.19(1998):1660-1663.
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