高度有序钛基体阳极氧化钛纳米管阵列的制备与表征

室温下在NH₄F、乙二醇的混合溶液中采用阳极氧化法在纯Ti片表面组装一层结构高度有序且表面光滑的TiO₂纳米管阵列．对TiO₂纳米管阵列进行扫描电子显微镜(SEM)、X射线衍射(XRD)检测; 且检测了TiO₂纳米管(锐钛矿型)在锂离子电池和光催化降解甲基橙等应用性能．结果表明, 制备得到了高密度排列的TiO₂纳米管阵列; TiO₂纳米管在锂离子的脱嵌过程中表现出较好的可逆性质. 溶液中加入H₂O₂可以提高TiO₂纳米管光降解催化活性．

Fabrication and Characterization of Highly Ordered Porous Anodic Titania on Titanium Substrate

Anodization of Ti using ethylene glycol containing 0.5wt％ NH₄F as electrolyte resulted in ordered arrays of TiO₂ nanotube with a smooth surface. Electrochemical anodization was carried out at room temperature. The microstructures and morphologies of the TiO₂ nanotube were nvestigated by scanning electron microscope (SEM), X-ray diffraction (XRD). A series of studies were carried out to investigate the properties of TiO₂ nanotubes (anatase) for lithium anode materials and for the materials of photocatalyzing degradation of aqueous methyl orange. The results show that high density, well ordered and uniform TiO₂ nanotube arrays are fabricated. TiO₂ nanotube shows a comparatively reversible reaction when it is used for lithium ion battery by CV measurement. Adding H₂O₂ into the solution can improve the photocatalysis of TiO₂ nanotube.