阳极氧化法制备TiO2多孔薄膜

本文综述了制备TiO2薄膜的各种方法,详细介绍了阳极氧化法制备TiO2多孔膜的进展,在非含氟电解液体系中,对纯钛进行阳极氧化处理可制得表面呈无规则生长的多孔膜结构;在含氟电解液体系中,则可自组织形成高度有序的TiO2纳米管阵列,并指出阳极氧化法是可在常温低压下进行、操作工艺简单、薄膜性能稳定、再现性好的一种最具工业化应用潜力的制备方法。

Synthesis of Porous TiO2 Films by Anodic Oxidation

The various types of processes for synthesis of TiO_2 films are discussed and evaluated respectively. The method of anodic oxidation is presented particularly in the aspects of the current development of the formation mechanism, the materials category and the affecting factors. The anodic oxidation has advantages over the other methods. Without the addition of fluoride, the pores are formed randomly and show no clear organization. With the addition of fluoride, self-organized nano-porous structure is produced and an ordered TiO_2 nano-tube arrays is revealed. Furthermore, its simplicity and lower cost make it the promising anodic preparation in large production of porous TiO_2 films.