Mssbauer study on Fe-doped TiO_2 by high-energy ball milling  

高能球磨法制备的含铁TiO_2的穆斯堡尔谱研究(英文)

作　　者：蒋冬梅 潘晓燕 石旺舟 马学鸣 

机构地区：[1]Department of Physics, East China Normal University, Shanghai 200062, P.R. China

出　　处：《Journal of Shanghai University(English Edition)》2006年第2期161-164,共4页上海大学学报（英文版）

基　　金：ProjectsupportedbyNationalNaturalScienceFoundationofChina(GrantNo.50471045)

摘　　要：The structural evolution of Fe-doped TiO2 by high-energy ball milling was investigated by X-ray diffraction and Mǒssbauer spectroscopy, The results show that the original anatase-TiO2 transforms to srilankite-type and rutile-type during ball milling. Iron atoms are preferable to dissolve in rutile-TiO2 and there are two relative doublets appearing in Mǒssbauer spectra. A doublet is found in the condition of Fe atoms dissolved in srilankite TiO2 lattice. Mǒssbauer spectra show that the composition distribution is nonuniform in TiO2 during the mechanical alloying with Fe atoms rich at the interface or surface of TiO2 crystalline.The structural evolution of Fe-doped TiO2 by high-energy ball milling was investigated by X-ray diffraction and Mǒssbauer spectroscopy, The results show that the original anatase-TiO2 transforms to srilankite-type and rutile-type during ball milling. Iron atoms are preferable to dissolve in rutile-TiO2 and there are two relative doublets appearing in Mǒssbauer spectra. A doublet is found in the condition of Fe atoms dissolved in srilankite TiO2 lattice. Mǒssbauer spectra show that the composition distribution is nonuniform in TiO2 during the mechanical alloying with Fe atoms rich at the interface or surface of TiO2 crystalline.

关 键 词：TIO2 Mǒssbauer spectroscopy high-energy ball milling. 

分 类 号：TG115[金属学及工艺—物理冶金]