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Tellurium Distribution and Speciation in Contaminated Soils from Abandoned Mine Tailings: Comparison with Selenium
Hai-Bo Qin;  Yasuo Takeichi;  Hiroaki Nitani;  Yasuko Terada;  Yoshio Takahashi
2017
发表期刊Environmental Science & Technology
卷号51期号:11页码:6027-6035
摘要

The distribution and chemical species of tellurium (Te) in contaminated soil were determined by a combination of microfocuscd X-ray fluorescence (mu-XRF), Xray diffraction (mu-XRD), and X-ray absorption fine structure (mu XAES) techniques. Results showed that Te was present as a mixture of Te(VI) and Te(IV) species, while selenium (Se) was predominantly present in the form of Se(IV) in the soil contaminated by abandoned mine tailings. In" the contaminated soil, Fe(III) hydroxides were the host phases for Se(IV), Te(IV), arid Te(VI), but Te(IV) could be also retained by illite. The difference in speciation and Solubility of Se and Te in soil can result from different structures of surface complexes for Se, and Te onto Fe(III) hydroxides. Furthermore, our results suggest that the retention of Te(IV) in soil could be relatively weaker than that of Tc(VI) due to structural incorporation. of Te(VI) Fe(III) hydroxides. These findings are of geochemical and environmental significance for better Understanding the solubility, mobility, and bioavailability of Te in the surface environment. To the, best of our knowledge, this is the first study reporting the speciation and host phases of Te in field soil by the mu-XRF-XRD-XAFS techniques.

收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/7750
专题环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
2.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
3.Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
4.Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
第一作者单位中国科学院地球化学研究所
通讯作者单位中国科学院地球化学研究所
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GB/T 7714
Hai-Bo Qin;Yasuo Takeichi;Hiroaki Nitani;Yasuko Terada;Yoshio Takahashi. Tellurium Distribution and Speciation in Contaminated Soils from Abandoned Mine Tailings: Comparison with Selenium[J]. Environmental Science & Technology,2017,51(11):6027-6035.
APA Hai-Bo Qin;Yasuo Takeichi;Hiroaki Nitani;Yasuko Terada;Yoshio Takahashi.(2017).Tellurium Distribution and Speciation in Contaminated Soils from Abandoned Mine Tailings: Comparison with Selenium.Environmental Science & Technology,51(11),6027-6035.
MLA Hai-Bo Qin;Yasuo Takeichi;Hiroaki Nitani;Yasuko Terada;Yoshio Takahashi."Tellurium Distribution and Speciation in Contaminated Soils from Abandoned Mine Tailings: Comparison with Selenium".Environmental Science & Technology 51.11(2017):6027-6035.
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