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Investigating the Speciation of Copper in Secondary Fly Ash by X-ray Absorption Spectroscopy
Tian, SL; Yu MJ(于梅娟); Wu ZY(吴自玉); Yu, MJ; Wang, W; Wang, Q; Wu, ZY
2009
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷号43期号:24页码:9084-9088
通讯作者[Tian, Shulei ; Wang, Qi] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China ; [Yu, Meijuan ; Wu, Ziyu] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Wu, Ziyu] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China ; [Wang, Wei] Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China
摘要Although some researchers have reported that chlorides may play an important part in the evaporation of copper during heat treatment of municipal solid waste incinerators (MSWI) fly ash (1, 2), details on the copper speciation in volatile matters (secondary fly ash, SFA) are still lacking. In this work, we used in situ X-ray absorption spectroscopy (XAS) experiments involving three types of SFA, which was collected from a high-temperature tubular electric furnace by thermal treatment of municipal solid waste incinerator (MSWI) fly ash at 1000, 1150, and 1250 degrees C. The results obtained by a linear combination fit (LCF) of X-ray absorption near edge structure (XANES) spectra revealed that in MSWI fly ash copper mainly exists as CuO and CuSO(4)center dot 5H(2)O while chloride almost dominated all the content of the SFA conformation, which was more than 80%. Extended X-ray absorption fine structure (EXAFS) data analysis indicated the presence of both Cu-O and Cu-Cl bonds in the first coordination shell of Cu ions in all SFA, while only Cu-O bonds occur in the MSWI fly ash. Consequently, in the MSWI fly ash during heat treatment copper evaporated as chloride, and the latter plays an important role in the formation of copper chloride.
文章类型Article
学科领域Engineering; Environmental Sciences & Ecology
DOI10.1021/es902039x
研究领域[WOS]Engineering ; Environmental Sciences & Ecology
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语种英语
WOS类目Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000272462500010
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240155
专题多学科研究中心
实验物理中心
作者单位中国科学院高能物理研究所
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Tian, SL,Yu MJ,Wu ZY,et al. Investigating the Speciation of Copper in Secondary Fly Ash by X-ray Absorption Spectroscopy[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2009,43(24):9084-9088.
APA Tian, SL.,于梅娟.,吴自玉.,Yu, MJ.,Wang, W.,...&Wu, ZY.(2009).Investigating the Speciation of Copper in Secondary Fly Ash by X-ray Absorption Spectroscopy.ENVIRONMENTAL SCIENCE & TECHNOLOGY,43(24),9084-9088.
MLA Tian, SL,et al."Investigating the Speciation of Copper in Secondary Fly Ash by X-ray Absorption Spectroscopy".ENVIRONMENTAL SCIENCE & TECHNOLOGY 43.24(2009):9084-9088.
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