Fe掺杂TiO2纳米材料的合成及光催化性能

Synthesis and Photocatalytic Properties of TiO2 Nano Materials Doped with Fe3+

摘要:

以钛酸丁酯为钛源,Fe(NO₃)₃.9H₂O为铁源,采用溶胶-凝胶法制备Fe/TiO₂纳米粉体,利用溶胶结合静电纺丝技术制备Fe/TiO₂纳米纤维,从材料改性及形貌改善两个角度共同提高TiO₂纳米材料的光催化活性及实用性。借助XRD、SEM、TEM等分析技术,探究了Fe/TiO₂纳米材料在可见光区的光催化活性,分析了煅烧温度及掺铁量对Fe/TiO₂纳米材料光催化性能的影响。结果显示,铁的掺入及形貌的改善有助于提高TiO₂的光催化性能。

Abstract:

Using butyl titanate as titanium source and Fe(NO₃)₃.9H₂O as iron source, Fe/TiO₂ nano powders were prepared by sol-gel method and Fe/TiO₂ nano fibers were prepared by sol-electrostatic spinning technology. The photocatalytic activity and practicability of TiO₂ nanomaterials were improved from the aspects of material modification and morphology improvement. By XRD, SEM and TEM, the photocatalytic activity of Fe/TiO₂ nano-materials in visible light region was investigated. The effect of calcination temperature and iron content on photocatalytic performance of Fe/TiO₂ nano-materials was analyzed. The results show that the addition of iron and the improvement of the morphology are helpful to improve the photocatalytic performance of TiO₂.