二氧化钛纳米管阵列的制备及光催化效果的研究  

PREPARATION AND PHOTO-CATALYTIC ACTIVITY OF TITANIA NANO-TUBE ARRAY

作　　者：廖斌[1] 罗军[1] 覃礼钊[1] 吴先映[1] 吴晓玲[1] 张旭[1] 刘安东[1] 

机构地区：[1]教育部射线束技术与材料改性重点实验室,北京师范大学核科学与技术学院,北京市辐射中心,北京100875

出　　处：《北京师范大学学报（自然科学版）》2010年第1期40-43,共4页Journal of Beijing Normal University(Natural Science)

基　　金：国家“863”计划资助项目(2001AA338020)

摘　　要：用阳极氧化法制备出高度致密、有序的TiO2纳米管阵列.利用SEM和XRD表征分析纳米管阵列的形貌和结构.分析结果表明:经过450℃退火后的TiO2晶相结构为夹杂少量金红石相的锐钛矿相.以甲基橙在水溶液中的光催化降解为实例,分别研究了TiO2纳米管阵列在可见光和紫外光激发下的光催化性能.实验结果表明:该阵列在紫外光激发下有较高的光催化效率,但在可见光照射下产生降解效果不太明显.Well-ordered titania nanotube array was fabricated on the surface of titanium plate by anodic oxidation in F-ions-containing electrolytes. XRD and FESEM were used to characterize and analyze the TiO2 nanotube arrays before and after annealing. Data indicate that： amorphous TiO2 transforms into anatase and with little rutile after 450℃ annealing. Photo-catalytic properties of TiO2 nanotube under UV and visible light in methyl orange （MO） solution were also investigated. It was found that TiO2 nanotube had high photo- catalytic efficiency under UV-light, but no significant effect under visible-light.

关 键 词：阳极氧化 纳米管 紫外光 光催化 

分 类 号：TQ134.11[化学工程—无机化工] TB383[一般工业技术—材料科学与工程]