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Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (14): 1489-1494. Previous Articles     Next Articles

Original Articles

二氧化钛反蛋白石薄膜的制备及其在化学传感器中的应用

李建林1,2，刘全俊2，陈海华2，魏红梅2，顾忠泽*,2,3，陆祖宏*,2，谢笔钧1   

  1. (1华中农业大学食品科技学院 武汉 430070)
    (2东南大学生物电子学国家重点实验室 南京 210096)
    (3南京大学固体微结构物理国家重点实验室 南京 210093)
  • 投稿日期:2005-12-28 修回日期:2006-03-23 发布日期:2006-07-28
  • 通讯作者: 顾忠泽

Fabrication of TiO2 Inverse Opal Film and Its Ap-plication in Chemical Sensor

LI Jian-Lin1,2, LIU Quan-Jun2, CHEN Hai-Hua2, WEI Hong-Mei2, GU Zhong-Ze*,2,3, LU Zu-Hong*,2, XIE Bi-Jun1   

  1. (1 College of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070)
    (2 State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096)
    (3 Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093)
  • Received:2005-12-28 Revised:2006-03-23 Published:2006-07-28
  • Contact: GU Zhong-Ze

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A high quality ordered titanium dioxide (TiO2) inverse opal film was fabricated by vertically lifting template method. First a substrate was lifted out of a particles suspension at the constant speed to fab-ricate a 295 nm poly(methyl methacrylate) (PMMA) opal film. Then the opal film was used as the template for the infiltration of titania nanoparticles with an aqueous suspension containing 10% 15-nm-titania-particles. Finally, the film was calcined at 500 ℃ to remove the polymer spheres and solidify the TiO2 network structure. SEM images and XPS show that the TiO2 inverse opal film with ordered structure was fabricated by this process. The conditions for the fabrication of ordered TiO2 inverse opal film were discussed. Based on the Bragg’s law, the ordered TiO2 inverse opal films were successfully used as refractive index sensors with a resolution of 0.01.

Key words: inverse opal, titanium dioxide, lifting method, sensor