Speciation of copper in plasma-melted slag

Yu Chun Huang, H. Paul Wang, Hsin Liang Huang, Yuh Jeen Huang, Juu En Chang, Yu Ling Wei

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)


Speciation of copper in the laboratory waste incineration ashes and plasma-melted slag has been studied by X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXFAS) spectroscopies. The component-fitted XANES spectra show that main copper species in the bottom and fly ashes are CuO (9-45%), Cu(OH)2 (25-40%) and nanosize CuO (30-35%). During the plasma melting process at 1773 K, about 97% of Cu2S in the slag is observed possibly due to sulfurization and self-reduction of CuO at high temperatures. By EXAFS, we also found that copper in the bottom and fly ashes possessed Cu{single bond}O bond distances of 1.97 and 1.99 Å with coordination numbers (CNs) of 2.1 and 2.3, respectively. In the slag, the bond distance of Cu-S is 2.3 Å with a CN of 3.8.

頁(從 - 到)214-216
期刊Journal of Electron Spectroscopy and Related Phenomena
出版狀態Published - 2007 5月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 輻射
  • 原子與分子物理與光學
  • 凝聚態物理學
  • 光譜
  • 物理與理論化學


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