【摘要】 用阳极氧化法制备多孔状的纳米晶二氧化钛薄膜 ,通过往阳极氧化的电解液中添加Fe3+ ,使其进入二氧化钛薄膜中 ,研究了掺杂Fe3+ 对二氧化钛薄膜吸收光谱和光催化活性的影响。在阳性氧化时通过往电解液中添加不同含量的Fe3+ 可以制得掺杂Fe3+ 浓度不同的薄膜 ,研究了掺杂Fe3+ 浓度不同对薄膜吸收光谱和光催化活性的影响。用X射线衍射、扫描电子显微镜、紫外 可见吸收光谱仪和X光电子能谱对薄膜进行了表征。实验发现掺杂Fe3+ 使二氧化钛薄膜对入射光的吸收带边发生红移 ,讨论了其作用机制。更多还原

【Abstract】 The porous titanium dioxide film in nano crystalline has been prepared by anodic oxidation on titanium. The effect of Fe 3+ dopen on absorption spectra photo-catalytic of the titanium dioxide films has been studied. The different amount of Fe 3+ dopen of the film has been taken by adding the different amount of the ferric ion the electrolyte during the anodic oxidation. The effect of different amount of Fe 3+-dopen on the absorption spectra and the photo-catalytic activity of the film have been studied. The films were characterized by X-ray diffraction, scanning electron microscope, UV-visible spectrophotometer, XPS and EDX analysis. The studies show that the Fe 3+ dopen caused the red movement of the absorption edge for the incoming light.更多还原