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通过阳极氧化法制备了适于工业应用的大尺寸二氧化钛纳米管阵列.考察了电极形状和面积、氧化电压、氧化时间、预处理等因素对阳极氧化法制备二氧化钛纳米管阵列形貌的影响.结果显示,电极形状对纳米管的制备没有影响;阳极氧化前打磨与否对纳米管也没有影响;氧化电压、氧化时间和电极面积对纳米管的影响较大,只有在合适的电压和时间下才能制成纳米管阵列.电极面积影响电流密度,从而影响纳米管的形貌,试验中电极最大面积为360cm2.通过试验得出工业化制备二氧化钛纳米管阵列的最佳条件是电压20V,电解时间30min,反应前不用进行打磨.实验结果显示制成的纳米管阵列对强酸强碱的耐受力强,完全可以适应工业化废水的pH变化.
A large-size titania nanotube array suitable for industrial applications was prepared by anodic oxidation method.The effect of electrode shape and area, oxidation voltage, oxidation time and pretreatment on the morphology of titania nanotube arrays prepared by anodization was investigated.Results Shows that the electrode shape has no effect on the preparation of the nanotubes; polishing before the anodic oxidation has no effect on the nanotubes; oxidation voltage, oxidation time and the electrode area have a greater influence on the nanotube, and only under the proper voltage and time The electrode area affects the current density, thus affecting the morphology of the nanotubes, the maximum electrode area in the experiment is 360cm2.The optimum conditions for the industrial preparation of titanium dioxide nanotube arrays obtained by the voltage 20V, electrolysis time 30min, No polishing before the reaction.The experimental results show that the nanotube array made of strong resistance to strong alkali, strong, fully adapted to industrial wastewater pH changes.