Hsiao M C, Wang H P, Huang Y J, Yang Y W
Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan, ROC.
J Synchrotron Radiat. 2001 Mar 1;8(Pt 2):931-3. doi: 10.1107/s0909049500020987.
Copper species such as CuCO3, Cu(OH)2, CuS and CuO were found in the bag house and EP (electrostatic precipitator) fly ashes of waste incineration processes by X-ray absorption near edge structural (XANES) spectroscopy. A small amount of Cu(I) and metallic Cu was found in the bag house fly ash. The averaged Cu-O bond distance in the fly ashes determined by EXAFS (extended X-ray absorption fine structural) was 1.96 A with coordination numbers of 2.4-3.9. However, the Cu-(O)-Cu (2nd shell) bond distance of the fly ashes in the incineration process was decreased by 0.19-0.21 A if compared to that of the CuO standard. The coordination numbers of the 2nd shell contribution to the bag house fly ash were not very significant.
通过X射线吸收近边结构（XANES）光谱法在垃圾焚烧过程的布袋除尘器和静电除尘器（EP）飞灰中发现了铜物种，如碳酸铜、氢氧化铜、硫化铜和氧化铜。在布袋除尘器飞灰中发现了少量的Cu（I）和金属铜。由扩展X射线吸收精细结构（EXAFS）测定的飞灰中平均Cu-O键距为1.96埃，配位数为2.4 - 3.9。然而，与氧化铜标准品相比，焚烧过程中飞灰的Cu-(O)-Cu（第二壳层）键距缩短了0.19 - 0.21埃。第二壳层对布袋除尘器飞灰的贡献的配位数不是很显著。
