| 不同阳极氧化条件下TiO_2纳米管阵列的制备及表征 |
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| 引用本文： | 李荐,罗佳,彭振文,郭欣.不同阳极氧化条件下TiO_2纳米管阵列的制备及表征[J].无机材料学报,2010,25(5):490-494. |
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| 作者姓名： | 李荐 罗佳 彭振文 郭欣 |
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| 作者单位： | 中南大学 材料科学与工程学院, 长沙 410083 |
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| 基金项目： | 国家科技支撑计划项目(2007BAE12B01) |
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| 摘 要： | 分别在三种不同的电解液中,以钛为基体采用阳极氧化的方法制备了TiO2纳米管阵列薄膜,用SEM观察纳米管阵列薄膜的形貌、测量纳米管管径大小;用XRD、拉曼光谱检测TiO2纳米管阵列薄膜热处理前后的晶型.结果表明:不同的电解液体系和氧化电压下得到的纳米管形貌各不相同.在0.24wt%HF水溶液中得到的TiO2纳米管排列整齐,管径为110nm;在0.5wt%NaF+2.7wt%Na2SO4水溶液和0.88wt%NH4F的丙三醇-水(体积比1:1)混合溶液中得到的纳米管排列不规整,管径为100nm;在0.24wt%HF条件下生成的TiO2纳米管管径与氧化电压成线性关系:d=k×U+b,其中,系数k=5.2nm/V,b=2.2nm,0≤U≤25V.经450℃热处理2h后TiO2纳米管结构由无定形态转变为锐钛矿.
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| 关 键 词： | 阳极氧化 TiO2纳米管阵列 制备 热处理 |
| 收稿时间： | 2009-08-28 |
| 修稿时间： | 2009-11-28 |
Preparation and Characterization of TiO_2 Nanotube Arrays by Anodic Oxidation Method |
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| LI Jian,LUO Jia,PENG Zhen-Wen,GUO Xin.Preparation and Characterization of TiO_2 Nanotube Arrays by Anodic Oxidation Method[J].Journal of Inorganic Materials,2010,25(5):490-494. |
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| Authors: | LI Jian LUO Jia PENG Zhen-Wen GUO Xin |
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| Affiliation: | School of Materials Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | Thin films of TiO2 nanotube arrays were fabricated by anodic oxidation method in different electrolyte solution.The morphology of the film and the diameter of the nanotubes were observed by scanning electronic microscope(SEM).The crystal type of the film before and after heat-treatment were characterized by X-ray diffraction(XRD) and Laser Raman.The results show that the electrolyte solution and applied votage have great effect on microstructure of the films.High order-aligned TiO2 nanotube arrays of 110nm ... |
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| Keywords: | anodic oxidation aligned TiO2 nanotubes preparation anneal |
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