纯钛表面二氧化钛纳米管阵列结构特征的研究  

Research on Microstructure Characteristics of Titania Nanotube Arrays on Pure Titanium Surface

作　　者：宁成云[1,2] 李丹[1,2] 郑华德[1,2] 谭帼馨[1,2,3] 王玉强[1,2] 马强[1,2] 

机构地区：[1]华南理工大学 [2]华南理工大学特种功能材料教育部重点实验室,广东广州510641 [3]广东工业大学,广东广州510006

出　　处：《稀有金属材料与工程》2010年第A01期350-352,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金项目(50502015,50872035);教育部“新世纪优秀人才”基金项目(教技函[2006]6号)

摘　　要：采用阳极氧化技术在纯Ti表面制备出有序的TiO2纳米管阵列,并通过SEM,XRD,XPS对TiO2纳米管阵列进行表征。结果表明,阳极氧化时间对纳米管的形成有较大的影响。在外加电压为20V,阳极氧化时间为20min时,可制备出长度约480nm、内径约89.90nm、壁厚约7.4nm的TiO2纳米管阵列。经450℃热处理后,可得到锐钛矿型的TiO2纳米管阵列,钛元素以Ti4+氧化态处于八面体的环境中,Ti2p3/2的结合能为459.3eV。The thin films of titania nanotube arrays were fabricated by anodic oxidation method and characterized by Scanning Electronic Microscopy （SEM）, X-ray Diffraction （XRD） and X-ray photoelectron spectroscopy （XPS）. The experiment results show that the time of anodization has a great effect on the microstructures of titania nanotube arrays. The order-aligned titania nanotube arrays of 480 nm in length, of 89.9 nm in inner diameter and 7.4 nm in wall thickness have been prepared at the voltage of 20 V for 20 rnin. The titania crystals in anatase type were obtained after annealed at 450 ℃. Ti^4＋ are mainly in an octahedral environment and the binding energy of Ti 2p3/2 is 459.3 eV.

关 键 词：二氧化钛纳米管阵列 阳极氧化 锐钛矿 金红石 

分 类 号：TG146.23[一般工业技术—材料科学与工程]