改性纳米TiO<sub>2</sub>薄膜超亲水性的研究进展

改性纳米TiO₂薄膜超亲水性的研究进展

摘要: 纳米TiO₂超亲水薄膜是新型的功能性薄膜,在自洁、防雾和生物兼容性应用等方面起着重要的作用。由于普通的TiO₂薄膜禁带宽度较大,亲水性能不佳,使其实际应用受到极大的限制,改性是提高TiO₂薄膜超亲水性能的重要手段。因此,对TiO₂进行改性就成为该领域的关键课题之一。文中综述了纳米TiO₂薄膜的超亲水性机理,以及实现超亲水性表面的改性方法。

Abstract: Superhydrophilic nano-TiO₂ film is a novel material which plays an important volt in self-cleaning,antifogging and biocompatible applications,while hydrophilicity is not satisfactory for normal TiO₂ films,so the modification of TiO₂ is necessary to improve the superhydrophilic property of the TiO₂ films.The recent research progress on mechanisms of superhydrophilicity of TiO₂ films,and modification methods are reviewed in this paper.