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) | |
刊名 | CHINESE SCIENCE BULLETIN |
1998 | |
卷号 | 43期号:19页码:1660-1663 |
关键词 | high-arsenic coal modes of occurrence synchrotron radiation EXAFS spectroscopy |
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 |
英文摘要 | 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+). |
学科主题 | Science & Technology - Other Topics |
类目[WOS] | Multidisciplinary Sciences |
研究领域[WOS] | Science & Technology - Other Topics |
原文出处 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000076897800016 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/239462] |
专题 | 高能物理研究所_多学科研究中心 |
作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 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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