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采用电化学阳极氧化法在TC4合金(Ti-6Al-4V)表面制备了TiO2基高度有序纳米管阵列。阳极氧化电解液体系为0.5wt%NH4F+0.1MH3PO4的水溶液,通过对阳极氧化电压和氧化时间的研究,揭示了纳米管阵列的制备规律。纳米管阵列的最优制备电压为20V,时间为1h,所制备纳米管管径约120nm、壁厚约17nm、管长约300nm。能量色散型X射线光谱(EDX)和X射线光电子能谱(XPS)研究结果表明没有实现对纳米结构的晶格掺杂。所制备的高度有序纳米管阵列具有广阔的应用前景。
TiO2-based highly ordered nanotube arrays were prepared on the surface of TC4 alloy (Ti-6Al-4V) by electrochemical anodic oxidation. Anodizing electrolyte system is 0.5wt% NH4F + 0.1MH3PO4 aqueous solution, through the anodization voltage and oxidation time, revealing the preparation of nanotube array. The optimal preparation voltage of nanotube array is 20V, the time is 1h, and the prepared nanotube has a diameter of about 120nm, a wall thickness of about 17nm and a tube length of about 300nm. The results of energy dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) showed that the lattice doping to the nanostructures was not achieved. The prepared highly ordered nanotube arrays have broad application prospects.