影像科学与光化学 ›› 2007, Vol. 25 ›› Issue (1): 12-17.DOI: 10.7517/j.issn.1674-0475.2007.01.12

• 研究论文 • 上一篇    下一篇

镶嵌铂的纳米管钛酸制备及其可见光光催化活性

冯彩霞, 金振声, 王晓冬, 杨建军   

  1. 河南大学, 特种功能材料重点实验室, 河南, 开封, 475001
  • 收稿日期:2006-06-30 修回日期:2006-07-30 出版日期:2007-01-23 发布日期:2007-01-23
  • 通讯作者: 金振声(1929-), 男, 研究员, 主要研究方向为光催化, Tel:(0378)2192331.
  • 基金资助:
    国家自然科学基金(20071010)

Preparation and Photocatalytic Behavior of Pt-inserted Nanotube Titanic Acid under Visible Light Irradiation

FENG Cai-xia, JIN Zhen-sheng, WANG Xiao-dong, YANG Jian-jun   

  1. Laboratory of Special Functional Materials, Henan University, Kaifeng 475001, Henan, P.R.China
  • Received:2006-06-30 Revised:2006-07-30 Online:2007-01-23 Published:2007-01-23

摘要: 通过在真空条件下将氯铂酸的乙醇溶液引入到钛酸纳米管内,再经过热处理制备了镶嵌铂的纳米管钛酸(简写为PNTA).X射线光电子能谱(XPS)表明氯铂酸大部分转变成Pt0和PtO,顺磁共振谱(ESR)表明在PNTA中生成了束缚单电子的氧空位,在紫外-可见扩散漫散射谱(DRS)谱上表现出对可见光有吸收能力.丙烯的可见光光催化氧化实验结果表明:在可见光激发下(λ>420nm),PNTA对丙烯的光催化去除反应具有活性.

关键词: 铂, 纳米管钛酸, 氧空位, 可见光光催化

Abstract: Pt-inserted nanotube titanic acid(abbr.PNTA) was prepared as follows: H2PtCl6 ethanol solution was filled into the titanic acid nanotubes and then annealed in air at 673 K for 3 h.X-ray photoelectron spectroscopy(XPS) showed that H2PtCl6 has been converted to Pt0 and PtO.The result of electron spin resonance(ESR) revealed that there are single-electron-trapped oxygen vacancies to be formed in PNTA after heat treatment in air.Under visible light(λ>420 nm),propylene can be catalytically oxidized by PNTA in the presence of air.

Key words: Pt-inserted nanotube titanic acid, visible light photocatalysis, propylene removal

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