物理化学学报 >> 2001, Vol. 17 >> Issue (03): 282-285.doi: 10.3866/PKU.WHXB20010321

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几种制备方法的掺铁二氧化钛光催化特性

水淼;岳林海;徐铸德   

  1. 浙江大学化学系,杭州　310027
  • 收稿日期:2000-10-08 修回日期:2000-11-06 发布日期:2001-03-15
  • 通讯作者: 岳林海 E-mail:ylh@mail.hz.zj.cn

Photocatalytic Activity of Iron Doping TiO2 Prepared by Several Methods

Shui Miao;Yue Lin-Hai;Xu Zhe-De   

  1. Department of Chemistry,Zhejiang University,Hangzhou　310027
  • Received:2000-10-08 Revised:2000-11-06 Published:2001-03-15
  • Contact: Yue Lin-Hai E-mail:ylh@mail.hz.zj.cn

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关键词: 溶胶-凝胶, 水解, 浸渍, X射线衍射, 晶格畸变, 光催化

Abstract: The iron doping titanium dioxide was prepared by solgel,step precipi tation,coprecipitation and immersion methods,respectively.The photocatalytic a ctivities of these prepared samples were evaluated in X3B dispersion irradiate d under UV.The experimental results showed that the immersion method,especially using the nano TiO2 as immersion matrix,greatly enhanced the photocatalytic acti vity.One fold enhancement in photocatalytic activity was observed in the case of the sample prepared by immersion doping method.This may be attributed to the na nosize effect,the irreversible hole trapper in nonsaturated bonding field of Fe3＋ and larger lattice strain.

Key words: Sol-gel, Hydrolysis, X-ray diffraction, Lattice strain, Photoca talysis