采用氮气中500℃和600℃热处理由阳极氧化法制备的TiO2纳米管阵列,制备了氮掺杂TiO2纳米管阵列电极.分别用环境扫描电镜(ESEM)、X射线光电子能谱(XPS),X射线衍射(XRD)和紫外可见漫反射吸收光谱对电极进行了表征.结果表明氮成功地掺入TiO2纳米管中.氮的引入使所制备的电极表现出可见光电催化活性,其中氮气中500℃下热处理得到的TiO2纳米管阵列电极表现出最好的可见光电催化活性.
Nitrogen -doped TiO2 nanotube -like arrays electrodes were prepared by anodic oxidation andthen followed by being treated in N2 flow at 500 and 600℃. The samples were characterized by environ-mental scanning electron microscope (ESEM), X - ray diffraction (XRD), X - ray photoelectron spec-trum (XPS) and UV - vis spectrum. The results showed successful incorporation of nitrogen into the TiO2nanotube. Enhanced photoelectrocatalytic activity in visible light region was observed owing to nitrogendoping. By comparison, the sample being treated in N2 flow at 500℃ exhibited the best photoelectrocata-lyric activity.
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