东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2003, Vol. 24 ›› Issue (11): 1064-1067.DOI: -

• 论著 • 上一篇    下一篇

光降解用WO_3-TiO_2复合光催化剂

刘奎仁;韩庆;陈建设;魏绪钧   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2003-11-15 发布日期:2013-06-24
  • 通讯作者: Liu, K.-R.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50104003)·

Composite WO3-TiO2 photocatalyst for photodegradation

Liu, Kui-Ren (1); Han, Qing (1); Chen, Jian-She (1); Wei, Xu-Jun (1)   

  1. (1) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2003-11-15 Published:2013-06-24
  • Contact: Liu, K.-R.
  • About author:-
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摘要： 用溶胶 凝胶法制备了纳米WO3 TiO2复合薄膜型光催化剂·利用该薄膜对罗丹明B溶液的光催化降解作用,考察了钨酸盐种类及其掺杂量、涂膜层数、溶解氧、焙烧温度、焙烧时间、基体材料等因素对光催化活性的影响·结果表明,钨酸铵加入量x(W)=1 5%、多孔钛片为基质,涂覆9层、500℃下焙烧1h得到的WO3 TiO2薄膜型复合光催化剂活性最高,其光催化活性较纯TiO2光催化剂提高1 5倍·该温度下多孔钛片负载的TiO2为锐钛矿型·

关键词: 光降解, 二氧化钛, 溶胶凝胶法, 薄膜, 复合

Abstract: The nano-crystal composite film photocatalyst WO3-TiO2 was prepared by sol- gel process. The effects of various tungstates with their doping amounts, the number of coating layers, the dissolved oxygen, the roasting temperature/time and various substrates on the photocatalytic activity were investigated through the photodecomposition action of films to the solution of Rhodamine B. Taking the parous Ti plate as a substrate, doping amount of (NH4)5H5 [H2(WO4)] ·H2O x(W)=1.5%, cladding a layers of the composite WO3-TiO2 films and roasting for 1 hour at 500°C, the composite WO3-TiO2 film with the highest photocatalytic activity can be obtained and its photocatalytic activity is 1.5 times higher than that of pure TiO2. Meanwhile the phase of the composite WO3-TiO2 film thus formed is attributed to anatase phase.

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