Anodization is a widely used method to obtain multicoloured oxidized titanium sheets. However, most researchers paid great attention to the colour-related properties instead of photoelectrical properties of titanium oxide film obtained by anodization. In this work, to study their photoelectrical properties, a series of multicoloured oxidized titanium sheets were prepared by anodization method, and UV–vis absorption and photocurrents were tested. The relationship between anodization voltages/anodization durations and photocurrents of titanium sheets was studied. Results show that titanium sheets have excellent photoelectrical performance. With the increase of anodization voltage, the number of UV–vis absorption peaks increased under visible light which means increasing absorption. When anodization duration increased, absorption band edge also increased in the visible light region, which means the band gap needed to produce charge transfer transition decreased. Under simulated sunlight and applied voltage of +0.4 V, photocurrent increased with the increase of either anodization voltage or anodization duration, and can be expressed by linear equations. In addition, anodization currents were recorded during anodization. Morphology, crystal structure and photoelectrical properties of anodized titanium sheets were characterized. The anodized titanium sheets can not only be used as decorative material in jewellery and architecture fields etc. but also are supposed to be used as photoelectrical catalyst in further work.

阳极氧化是获得彩色氧化钛板的一种广泛使用的方法。然而，大多数研究人员非常关注与颜色相关的特性，而不是通过阳极氧化获得的氧化钛薄膜的光电特性。在这项工作中，为了研究其光电性能，通过阳极氧化方法制备了一系列彩色氧化钛板，并测试了UV-vis吸收和光电流。研究了阳极氧化电压/阳极氧化持续时间与钛板光电流之间的关系。结果表明，钛板具有优异的光电性能。随着阳极氧化电压的增加，在可见光下紫外可见吸收峰的数量增加，这意味着吸收增加。当阳极氧化时间延长时，吸收带边缘在可见光区域也增加，这意味着产生电荷转移跃迁所需的带隙减小。在模拟太阳光和+0.4 V的施加电压下，光电流随着阳极氧化电压或阳极氧化持续时间的增加而增加，并且可以用线性方程式表示。另外，在阳极氧化过程中记录了阳极氧化电流。表征了阳极氧化钛板的形貌，晶体结构和光电性能。阳极氧化的钛板不仅可以用作珠宝和建筑领域等的装饰材料，而且还可以用作进一步工作中的光电催化剂。在模拟太阳光和+0.4 V的施加电压下，光电流随着阳极氧化电压或阳极氧化持续时间的增加而增加，并且可以用线性方程式表示。另外，在阳极氧化过程中记录了阳极氧化电流。表征了阳极氧化钛板的形貌，晶体结构和光电性能。阳极氧化的钛板不仅可以用作珠宝和建筑领域等的装饰材料，而且还可以用作进一步工作中的光电催化剂。在模拟太阳光和+0.4 V的施加电压下，光电流随着阳极氧化电压或阳极氧化持续时间的增加而增加，并且可以用线性方程式表示。另外，在阳极氧化过程中记录了阳极氧化电流。表征了阳极氧化钛板的形貌，晶体结构和光电性能。阳极氧化的钛板不仅可以用作珠宝和建筑领域等的装饰材料，而且还可以用作进一步工作中的光电催化剂。表征了阳极氧化钛板的晶体结构和光电性能。阳极氧化的钛板不仅可以用作珠宝和建筑领域等的装饰材料，而且还可以用作进一步工作中的光电催化剂。表征了阳极氧化钛板的晶体结构和光电性能。阳极氧化的钛板不仅可以用作珠宝和建筑领域等的装饰材料，而且还可以用作进一步工作中的光电催化剂。