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基于超声波雾化技术的 TiO2纳米膜制备及表征

张嘉琪, 郑嗣华, 黄积涛   

  1. 天津理工大学生物与化学工程学院, 天津 300191
  • 收稿日期:2005-06-16 修回日期:2005-09-19 出版日期:2006-05-20 网络出版日期:2006-05-20

Preparation and Characterization of Nano-films of TiO2 Based on Ultrasonic Atomization Technology

ZHANG Jia-Qi, ZHENG Si-Hua, HUANG Ji-Tao
  

  1. College of Biotechnology and Chemical Engineering, Tianjin University of Technology, Tianjin 300191, China
  • Received:2005-06-16 Revised:2005-09-19 Published:2006-05-20 Online:2006-05-20

摘要: 采用超声波雾化技术制备TiO2纳米膜, 并对其进行了紫外、扫描电镜、X射线衍射及亲水性能的表征, 讨论了超声波雾化频率对TiO2纳米膜的影响. 分析表明, 此技术可制备均匀致密、粒径为20~80nm、锐钛矿晶相的TiO2纳米膜, 此膜经加热或紫外线照射后具有超亲水性能.

关键词: 纳米膜, 超声波, 雾化, TiO2

Abstract: The nano-films of TiO2 were prepared by using ultrasonic atomization technology. The films were characterized by the absorption of UV spectrum. Their surfaces were viewed by the scanning electronic microscope (SEM) and the X-ray diffraction. The hydrophilic effect of the films was determined. The influence of the frequency of ultrasonic atomization on the nano-films of TiO2 was discussed. The analytic results show that the resulting products are a nano-film of TiO2 as uniformed crystal of anatase with the particle diameter of 20~80nm. After heated or irradiated by UV radiation, the two films become super-hydrophilic materials.

Key words: nano film, ultrasonic, atomization, TiO2

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