Combined SEM/EDX and micro-Raman spectroscopy analysis of uranium minerals from a former uranium mine

JOURNAL OF HAZARDOUS MATERIALS

卷:168

Article

Stefaniak, Elzbieta A.^1,2  Alsecz, Anita³  Frost, Ray⁴  Mathe, Zoltan⁵  Sajo, Istvan E.⁶  Torok, Szabina³  Worobiec, Anna¹  Van Grieken, Rene¹ 

[1] Univ Antwerp, Dept Chem, BE-2610 Antwerp, Belgium

[2] Catholic Univ Lublin, Dept Chem, PL-20718 Lublin, Poland

[3] Hungarian Acad Sci, KFKI Atom Energy Res Inst, H-1525 Budapest, Hungary

[4] Queensland Univ Technol, Sch Phys & Chem Sci, Inorgan Mat Res Program, Brisbane, Qld 4001, Australia

[5] Mecsek Ore Environm, H-7614 Pecs, Hungary

[6] Hungarian Acad Sci, Chem Res Ctr, H-1025 Budapest, Hungary

关键词: Uranium minerals;    Uranyl ion;    Uranium mine;    Micro-Raman spectroscopy;    SEM/EDX;   

DOI  :  10.1016/j.jhazmat.2009.02.057

来源: Elsevier

【 摘 要 】

Samples of the secondary uranium minerals collected in the abandoned uranium mine at Pecs (Hungary) were investigated by two micro-techniques: scanning electron microscopy (SEM/EDX) and micro-Raman spectroscopy (MRS). They were applied to locate U-rich particles and identify the chemical form and oxidation state of the uranium compounds. The most abundant mineral was a K and/or Na uranyl sulphate (zippeite group). U(VI) was also present in the form showing intensive Raman scattering at 860 cm(-1) which can be attributed to uranium trioxide. This research has shown the successful application of micro-Raman spectroscopy for the identification of uranyl mineral species on the level of individual particles. (C) 2009 Elsevier B.V. All rights reserved.

【 授权许可】

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