添加Fe^(3+)对二氧化钛薄膜吸收光谱及光催化活性的影响(英文)  

Effect of Fe^(3+) Dopen of Titanium Dioxide Film on Absorption Spectra and Photo Catalysis

作　　者：肖美群[1] 杨建纯[1] 沈嘉年[1] 李谋成[1] 武朋飞[1] 刘冬[1] 

机构地区：[1]上海大学材料研究所,上海200072

出　　处：《材料科学与工程学报》2005年第1期48-52,共5页Journal of Materials Science and Engineering

基　　金：Thisworkisfinanciallysupportedbythenationalnaturalsciencefund (No.1 0 2 760 2 2 ) .

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。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.

关 键 词：二氧化钛薄膜 掺杂Fe^3+离子 光吸收 光催化活性 

分 类 号：TB43[一般工业技术]