Modes of occurrence of arsenic in high-arsenic coal by extended X-ray absorption fine structure spectroscopy

	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.