高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (3): 465.

• 论文 • 上一篇    下一篇

不锈钢金属丝网上TiO2纳米薄膜光催化剂的研究

朱永法1,2, 李巍1, 何俣1, 尚静1   

  1. 1. 清华大学化学系;
    2. 碳一化学国家重点实验室, 北京 100084
  • 收稿日期:2002-05-15 出版日期:2003-03-24 发布日期:2003-03-24
  • 通讯作者: 朱永法(1964年出生),男,博士,教授,博士生导师,从事纳米薄膜材料与环境催化研究.E-mail:zhuyf@chem.tsinghua.edu.cn E-mail:zhuyf@chem.tsinghua.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20071021);教育部优秀青年教师资助计划;北京大学国家重点实验室访问学者基金资助

Studies on Nanometer TiO2 Film Photocatalyst Supported on Stainless Steel Wire Gauze

ZHU Yong-Fa1,2, LI Wei1, HE Yu1, SHANG Jing1   

  1. 1. Department of Chemistry;
    2. State Key Laboratory of C1 Chemical Technology, Tsinghua University, Beijing 100084, China
  • Received:2002-05-15 Online:2003-03-24 Published:2003-03-24

摘要: 以钛酸正丁酯为原料,采用溶胶-凝胶法在金属丝网上制备了TiO2薄膜光催化剂.利用SEM,TEM,AES和Raman光谱研究了薄膜的表面及结构特性.以甲醛的光催化氧化反应为试验反应,考察了提拉次数、PEG浓度和焙烧温度对TiO2薄膜光催化剂活性的影响.将TiO2薄膜的结构特性与其光催化活性进行了关联.结果表明,在前驱体溶胶中加入10%PEG400,提拉3次并于400℃下焙烧可制得具有中孔结构和结晶完好的锐钛矿型TiO2薄膜,并具有最佳的光催化活性.

关键词: TiO2, 薄膜, 光催化, 聚乙二醇(PEG), Raman光谱

Abstract: Nanometer TiO2 film photocatalyst on stainless steel wire gauze was prepared by using sol-gel method. The structure of the TiO2 film on stainless steel wire gauze was characterized by SEM, TEM, AES and Raman techniques. The effects of dipping time, the concentration of PEG and calcining temperature on the photocatalytic activity of TiO2 film were studied. The best photocatalyst was obtained when sol contained 10%(molar fraction) PEG 400 and the film was calcined at 400 ℃.

Key words: TiO2, Film, Photocatalysis, PEG, Raman spectrum

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