采用阳极氧化法，在醇（丙三醇、乙二醇）-水NH4F电解液体系中制备高度有序的TiO2纳米管阵列。采用场发射扫描电子显微镜（SEM）、X射线衍射仪（XRD）对TiO2纳米管阵列的形貌和晶型结构进行表征，讨论了阳极氧化法制备工艺（阳极氧化电压、氧化时间、电解液）对TiO2纳米管的形貌、结构及其甲基橙光催化降解性能的影响；分析了退火温度对TiO2阵列的物相及其光催化性能的影响。研究结果表明，采用高电压、增加氧化时间有利于TiO2纳米管阵列光催化的提高，在其它参数相同的情况下，采用丙三醇作为电解液制备获得的TiO2纳米管阵列较乙二醇体系具有更加优异的光催化性能。
TiO2 nanotube arrays were fabricated by electrochemical anodization of Ti foil in glycerin(or glycol), H2O and NH4F electrolyte. To study the influence of voltage, reaction time and electrolyte to TiO2 nanostruc- ture and photocatalytic performance, SEM and XRD were used to analysis the morphology and composition of TiO2 nanotube arrays. The crystal phase transition were also investigated here under anneal temperature. The result shows that higher voltage and longer reaction time lead to better degradation ratio of methyl orange, using electrolyte composed of glycerin surpass that of glycol.
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