含电弧炉粉尘玻璃中锌和铁的分布及键合环境：μ-XAFS和μ-XRF研究
On the distribution and bonding environment of Zn and Fe in glasses containing electric arc furnace dust: a mu-XAFS and mu-XRF study.
作者信息
Pinakidou F, Katsikini M, Paloura E C, Kavouras P, Kehagias Th, Komninou Ph, Karakostas Th, Erko A
机构信息
Aristotle University of Thessaloniki, Department of Physics, GR54124 Thessaloniki, Greece.
出版信息
J Hazard Mater. 2007 Apr 2;142(1-2):297-304. doi: 10.1016/j.jhazmat.2006.08.016. Epub 2006 Aug 12.
We apply synchrotron radiation assisted X-ray fluorescence (SR-XRF), SR-XRF mapping as well as micro- and conventional X-ray absorption fine structure (mu-XAFS and XAFS) spectroscopies in order to study the bonding environment of Fe and Zn in vitrified samples that contain electric arc furnace dust from metal processing industries. The samples are studied in the as-cast state as well as after annealing at 900 degrees C. The SR-XRF results demonstrate that annealing does not induce any significant changes in the distribution of either Fe or Zn, in both the as-cast and annealed glasses. The mu-XAFS spectra recorded at the Fe-K and Zn-K edges reveal that the structural role of both Fe and Zn remains unaffected by the annealing procedure. More specifically, Fe forms both FeO(6) and FeO(4) polyhedra, i.e. acts as an intermediate oxide while Zn occupies tetrahedral sites.
我们应用同步辐射辅助X射线荧光光谱法（SR-XRF）、SR-XRF成像以及微区和常规X射线吸收精细结构（μ-XAFS和XAFS）光谱学，以研究含有金属加工行业电弧炉粉尘的玻璃化样品中Fe和Zn的键合环境。对样品在铸态以及在900℃退火后进行研究。SR-XRF结果表明，退火不会在铸态和退火玻璃中引起Fe或Zn分布的任何显著变化。在Fe-K和Zn-K边缘记录的μ-XAFS光谱表明，Fe和Zn的结构作用均不受退火过程的影响。更具体地说，Fe形成FeO(6)和FeO(4)多面体，即作为中间氧化物起作用，而Zn占据四面体位置。
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