Co-deposition of photocatalytic Fe doped TiO2 coatings by MOCVD
Co-deposition of photocatalytic Fe doped TiO2 coatings by MOCVD
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DOI：
10.1016/j.catcom.2005.12.023
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发表时间：
2006-07
影响因子：
3.7
通讯作者：
Xingwang Zhang;Ming-hua Zhou;L. Lei
中科院分区：
文献类型：
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作者：
Xingwang Zhang;Ming-hua Zhou;L. Lei
为了提高负载型TiO 2在可见光区的吸收，采用金属有机化学气相沉积（MOCVD）共沉积法一步制备了Fe掺杂TiO 2涂层。XANES结果表明，Fe以孤立的八面体配位Fe 3+离子取代Ti 4+存在于TiO 2晶格中。EDX分析表明，Fe在Fe-TiO 2涂层中分布均匀。紫外-可见漫反射光谱表明，与未掺杂样品相比，Fe掺杂的TiO 2涂层在可见光区（> 400 nm）的吸收增强，并向长波方向移动。在可见光照射下，Fe掺杂的TiO 2样品对甲基橙橙子具有良好的光催化降解活性。
To enhance the absorption in the visible region for supported TiO2, Fe doped TiO2coatings have been prepared in one step by a co-deposition process of metal organic chemical vapor deposition method. The results of XANES indicate that iron exists as isolated octahedrally coordinated Fe3+ions substituting Ti4+in the TiO2lattice. EDX reveals that iron has a uniform distribution within Fe–TiO2coatings. UV–Vis diffuse reflectance spectra show a slight shift to longer wavelengths and an enhancement of the absorption in the visible region (>400nm) for the Fe doped TiO2coatings, compared to the non-doped sample. The Fe doped TiO2samples exhibited good photocatalytic activities for the degradation of methyl orange under visible light irradiation.