作　　者： ; ; ; ; ;

机构地区： 海南大学材料与化工学院海南优势资源化工材料应用技术教育部重点实验室

出　　处： 《钛工业进展》 2010年第4期16-19,共4页

摘　　要： 采用阳极氧化法在纯钛表面制备了二氧化钛纳米管,并在热处理的过程中提供氨气氛进行掺N。场发射扫描电镜(FESEM)观察结果表明,制得的纳米管管径为70～80 nm,壁厚为5～10 nm;XRD分析结果表明,400℃热处理的未掺杂二氧化钛为纯锐钛矿相,400℃热处理掺杂后的二氧化钛为锐钛矿和金红石混相。以甲基橙为参考污染物,采用分光光度计研究了未掺杂和N掺杂二氧化钛纳米管对污染物的光催化性能。结果显示N掺杂的二氧化钛纳米管的光催化性能比未掺杂的提高了11.1%,光催化效果差异是N掺杂引起的。 TiO2 nanotube arrays were prepared on the surface of pure titanium sheet by anodic oxidation method. N was doped during heat treatment with NH3. The configuration of the TiO2 nanotube was measured by field emission electron microscope （ FESEM）, the crystal structure was measured by XRD. The results indicated that the diameter of annotate was 70 - 80 nm and the thickness of the wall was 5 - 10 nm. Undoped TiO2 heated at 400 ℃ was entirely anatase, N-doped TiO2 was anatase mixed with rutile. Methyl orange was used as the degradable agent in photocatalysis experiment. The results indicated that the photocatalysis property of N-doped TiO2 nanotube arrays film was 11.1% higher than undoped TiO2 film, the difference of photocatalysis was induced by N doped.

关 键 词： 阳极氧化 二氧化钛纳米管 掺杂 光催化

领　　域： [理学] [理学]