高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (8): 1567.

• 研究论文 • 上一篇    下一篇

反胶束体系制备负载型TiO2纳米光催化剂

冯琳1,2, 褚莹1, 刘景林1, 孙闻东1, 江雷2   

  1. 1. 东北师范大学化学学院, 长春 130024;
    2. 中国科学院化学研究所, 北京 100080
  • 收稿日期:2001-07-12 出版日期:2002-08-24 发布日期:2002-08-24
  • 通讯作者: chu-ying@yeah.net
  • 作者简介:褚莹(1944年出生),女,教授,从事胶体与界面化学研究.E-mail:chu-ying@yeah.net
  • 基金资助:

    国家自然科学基金(批准号:20173008)资助

Preparation of Loaded Nanosize TiO2-Photocatalyst in Reverse Micelle System

FENG Lin1,2, CHU Ying1, LIU Jing-Lin1, SUN Wen-Dong1, JIANG Lei2   

  1. 1. Faculty of Chemistry, Northeast Normal University, Changchun 130024, China;
    2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2001-07-12 Online:2002-08-24 Published:2002-08-24

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摘要： 在AOT/异辛烷反胶束体系中制备了粒径为2～5nm的单分散球形TiO2纳米粒子,用TEM,DSC和XRD等手段对其进行了分析;用浸渍法以小孔分子筛HZSM-5为载体制备了负载型TiO2纳米粒子,用FTIR,Langmuir及BET等手段进行了表征;用以上2种TiO2粒子作光催化剂进行了简单模拟废水处理研究,用UV-Vis光谱分析其催化效果表明,负载型TiO2纳米粒子比纯TiO2纳米粒子的光催化活性更高.

关键词: 反胶束, TiO2纳米粒子, 负载, 光催化剂

Abstract: TiO2 nanoparticles with a diameter of 2-5 nm were prepared by reverse micelle method and characterized by TEM, DSCand XRD. The loaded nanosize TiO2 photocatalyst supported by small porous molecular sieve HZSM-5 was obtained by impregnating method and identified by FTIR, Langmuir, BETand BJHadsorption. The synthesized pure TiO2 nanoparticles and loaded nanosize TiO2 were respectively used as photocatalyst to degrade K2Cr2O7 in aerated solution. The UV-Vis spectra indicated that the photocatalytic activity of the loaded TiO2 nanoparticles was higher than that of the pure.

Key words: Reverse micelle, TiO2 nanoparticles, Loaded, Photocatalyst

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