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铜离子掺杂对TiO2纳米颗粒膜结构和性能的影响

姜洪波; 高濂; 张青红   

  1. 中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室 上海 200050
  • 收稿日期:2001-07-13 修回日期:2001-08-23 出版日期:2002-07-20 网络出版日期:2002-07-20

Influence of Cu Dopants on Structure and Properties of Nanpsized TiO2 Particulate Film

JIANG Hong-Bo; GAO Lian; ZHANG Qing-Hong   

  1. State key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Shanghai 200050; China
  • Received:2001-07-13 Revised:2001-08-23 Published:2002-07-20 Online:2002-07-20

摘要: 采用溶胶-凝胶法在普通的载玻片上制备了锐钛矿型TiO2和过渡金属Cu离子掺杂TiO2薄膜.通过XRD,UV-VIS,XPS,AFM表征了合成的薄膜,表明铜离子掺入后,薄膜变得更加致密.铜离子以Cu2O的形式存在.在紫外光照射下,TiO2薄膜表现出明显的亲水性.对于掺铜的TiO2薄膜,随着铜掺杂量的增加,铜(Ⅰ)对亲水性能的抑制作用亦增强.

关键词: 溶胶-凝胶法, 亲水性, 金属离子掺杂, TiO2

Abstract: Transparent TiO2 thin film and Cu-doped TiO2 thin film were prepared by the sol-gel method on the soda lime glass substrates. The change of hydrophilicity
of the films under UV illumination was investigated. The results of XRD, UV-VIS, XPS and AFM show that Cu ions are in the form of Cu2O. The addition of Cu ions
can suppress the grain growth of crystals in the TiO2 thin film. Pure TiO2 thin film can be entirely wetted by water after UV illumination for 5h and shows
good hydrophilicity. The hydrophilicity of TiO2 will decrease with increasing amount of Cu dopants.

Key words: sol-gel method, hydrophilicity, metal dopants, TiO2

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