文献类型：专利

英文题名：Visible photo-activated photochemical catalyst and lamp arraying type packed bed reaction apparatus

作者：LIU W;CHEN A;LU G;QIU W;GAN D;DAI Z

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN1689696-A

申请日：2003-09-29

公开日：2005-11-02

语种：英文

收录：DERWENT

摘要：NOVELTY - The present invention relates to the preparation process of nitrogen doped visible light sensitized TiO2 photocatalyst, and photocatalytic fluid treating method and apparatus with light array fixed bed. Through the thermal decomposition and ammonium bicarbonate to produce water and ammonia, homogeneous hydrolysis and ammonolysis of titanium tetrachloride to produce nitrogen doped titanic acid precursor, and low temperature treatment of the precursor in nitrogen atmosphere, visible light sensitized nanometer nitrogen doped TiO2 film or powder may be prepared. DETAILED DESCRIPTION - The light array reactor has homogeneously distributed ultraviolet lamp with loaded photocatalyst filled in the space between the lamp and sleeve. The preparation process has the advantages of mild reaction condition, low heat treatmenttemperature, etc. and the photocatalytic reactor has the advantages of continuous operation, high efficiency, etc. The present invention may be used in water treatment, air purification, etc.