欢迎登录材料期刊网

材料期刊网

高级检索

以Ti(OC4H9)4为原料采用溶胶-凝胶法制备了纳米TiO2/玻璃薄膜光催化剂,用X射线衍射法对催化剂的物相、粒径进行了表征.结果表明,薄膜中TiO2为锐钛矿晶型,粒径15~25nm.用X射线光电子能谱法分析膜的化学组成.摩擦学实验表明,TiO2/玻璃膜具有良好的减磨和抗磨性能.水中染料玫瑰红B的光催化氧化降解实验结果表明,TiO2膜对玫瑰红B降解有很高的催化活性,其降解反应对时间和浓度均为一级反应,反应速率可用Langmuir-Hinshelwood方程描述.

TiO2/glass films have been prepared by a sol-gel method withtitanium tetrabutoxide as precursor. XRD and XPS results indicate the film is composed of anatase phase and with TiO2 size of about 15~25 nm. Triboloyical study indicates the TiO2 film has a long antiwearing life. The TiO2/glass film shows a high catalytic activity in photodegradation of rhodamine B in aqueous solution. The photodegradation follows first order kinetics and its reaction rate can be expressed by Langmuir-Hinshewood equation.

参考文献

[1] Ollis D F,Pelizzetti E,Serpone N. Environ Sci Technol,1991,25(9):1523
[2] Hiroski T,Manabu A,Yasuyuki K, et al. J Phys Chem B,1998,102:6360
[3] FANG You-Ling(方佑龄),ZHAO Wen-Kuan(赵文宽),YIN Shao-Hua(尹少华), et al. Yingyong Huaxue(应用化学),1997,14(2):81
[4] Takeda N,Othtani M,Torimoto T, et al. J Phys Chem B,1997,101:2644
[5] Brus L E. J Phys Chem,1990,90:2555
[6] LIU Min-Sheng(柳闽生),YANG Mai-Zhi(杨迈之),CAI Sheng-Min(蔡生民). Huaxue Tongbao(化学通报),1997,(1):20
[7] Wang Y,Herron N. J Phys Chem,1991,95:525
[8] YIN Yuan-Gen(尹元根)Chief-ed(主编). Reserch Methods for Multiphase Catalysts(多相催化剂的研究方法). Beijing(北京):Chemical Industry Press(化学工业出版社),1998:160
[9] Butler E C,Davis A P. J Photo Chem Photochem Photobiol A:Chem,1993,70:273
[10] Zhu H,Zhang M P,Xia Z F, et al. Wat Res,1995,29(12):2681
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%