N掺杂二氧化钛纳米管的制备及光催化性能研究  

Preparation and Photocatalysis Property of N Doped TiO_2 Nanotube

作　　者：张理元[1] 刘钟馨[1] 于晓龙[1] 吕作凤[1] 曹阳[1] 

机构地区：[1]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,硅锆钛资源综合开发与利用海南省重点实验室,海南海口570228

出　　处：《钛工业进展》2010年第4期16-19,共4页Titanium Industry Progress

基　　金：科技部国际科技合作项目(2008NR0685);教育部重点科技项目(207091);海南省教育厅基金(Hjkj2008-01);国际科技合作项目(2009DFA92550)

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 N掺杂 光催化 

分 类 号：TB383.1[一般工业技术—材料科学与工程]