高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (7): 1371.

• 研究论文 • 上一篇    下一篇

TiO2纤维的制备及其光催化活性研究

杨祝红, 暴宁钟, 刘畅, 冯新, 谢敬伟, 吉晓燕, 陆小华   

  1. 南京化工大学化工学院, 南京 210009
  • 收稿日期:2000-10-20 出版日期:2002-07-24 发布日期:2002-07-24
  • 通讯作者: 陆小华(1959年出生),男,博士,教授,博士生导师,从事新材料和热力学研究.
  • 基金资助:

    国家自然科学杰出青年科学基金(批准号:29925616);江苏省科委应用基础研究基金(批准号:BJ98060);江苏省自然科学基金(批准号:BS2000013)

Preparation of Titanium Dioxide Fibers and Their Photocatalysis Reactivity

YANG Zhu-Hong, BAO Ning-Zhong, LIU Chang, FENG Xin, XIE Jing-Wei, JI Xiao-Yan, LU Xiao-Hua   

  1. College of Chemical Engineering, Nanjing University of Chemical Technology, Nanjing 210009, China
  • Received:2000-10-20 Online:2002-07-24 Published:2002-07-24

摘要: K2Ti4O9纤维为前驱体经过离子交换合成纤维TiO2.通过甲基橙废水模型体系考察了纤维TiO2的光催化活性,同时研究了在不同pH值条件下TiO2纤维分散体系的稳定性能.结果表明,TiO2纤维光催化活性与微米级TiO2相当,且控制溶液的pH值可实现TiO2纤维与溶液的快速分离.

关键词: TiO2纤维, 光催化, 甲基橙, 废水处理, 悬浮沉降性质

Abstract: Titanium dioxide fibers(TiO2) were prepared from K2Ti 4O9 fiber precursors by ion exchange reaction in hydrochloric acid. The photocatalytic reactivity of titanium dioxide fibers was studied with helianthin Bas a model compound of waste water and the property of suspension sedimentation at different pHvalues was studied. The results show that TiO2 fibers have good photocatalysis properties equivalent to the commercial micron size TiO2. Furthermore, the serious agglomeration appears at pH=6.0 and can be easily separated from solution.

Key words: Titanium dioxide fibers, Photocatalysis, Helianthin B, Treatment of waste water, Properties of suspension sedimentation

中图分类号: 

TrendMD: