影像科学与光化学 ›› 2004, Vol. 22 ›› Issue (2): 120-125.DOI: 10.7517/j.issn.1674-0475.2004.02.120

• 研究简报 • 上一篇    下一篇

酸化对层状K2La2Ti3O10光催化活性的影响

李涛海, 吴季怀, 林建明, 程应汉   

  1. 华侨大学, 材料物理化学研究所, 福建, 泉州, 362011
  • 收稿日期:2003-11-10 修回日期:2004-01-05 出版日期:2004-03-23 发布日期:2004-03-23
  • 通讯作者: 吴季怀
  • 基金资助:
    国家自然科学基金资助项目(50082003,50372022);福建省国际合作项目(2001I006);福建省自然科学基金资助项目(E0210023)

THE INFLUENCE OF ACIDIFICATION ON PHOTOCATALYTIC PROPERTY OF LAYERED K2La2Ti3O10

LI Tao-hai, WU Ji-huai, LIN Jian-ming, CHENG Ying-han   

  1. Institute of Materials Physics and Chemistry, Huaqiao University, Quanzhou 362011, Fujian, P.R. China
  • Received:2003-11-10 Revised:2004-01-05 Online:2004-03-23 Published:2004-03-23

摘要: 本文通过高温固相反应合成了一种层状金属氧化物K2La2Ti3O10,利用离子交换反应对其在不同条件下进行酸化.并通过对甲基橙溶液的降解对其光催化活性进行评价,结果发现,酸化后K2La2Ti3O10的光催化活性有显著提高.通过对样品的结构、XRD、DRS分析,对这种现象做出了几种可能的解释.

关键词: 层状K2La2Ti3O10, 离子交换反应, 光催化, 降解

Abstract: Photocatalytic degradation of methyl orange over a kind of layered metaloxide was accomplished.K2La2Ti3O10,a layered perovskite-type compound with a 1.39 nm interlayer space,exhibited a low activity for methyl orange decomposition.The notable activity was obtained when K2La2Ti3O10 was acidified in 2 mol/L HNO3 solution.

Key words: layered K2La2Ti3O10, photocatalytic, acidification, methyl orange

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