TiO2·SiO2/beads降解有机磷农药的研究
收稿日期: 2000-11-04
网络出版日期: 2010-10-01
基金资助
国家科委重点科学攻关项目(920-05-02)
Research on photocatalytic degradation of organophosphorous pesticides using TiO2· SiO2 /beads
Received date: 2000-11-04
Online published: 2010-10-01
张新荣, 杨平, 赵梦月 . TiO2·SiO2/beads降解有机磷农药的研究[J]. 工业水处理, 2001 , 21(3) : 13 -39 . DOI: 11894/1005-829x.2001.21(3).13
This paper introduces the preparation of composite photocatalyst TiO2·SiO2attached to the hollow glass microbeads by the dip-coating technique using TiCl4 and tetraethoxysilane as raw materials. The photocatalytic degradation of organophosphorous pesticides is studied. The results show that the photoactivity of TiO2·SiO2 /beads is improved,and the best photocatalyst produces1. 35 times of Degussa P - 25 TiO2. Moreover,the adsorption and the surface area are also introduced in this paper, and the surface condition and particle size of the composite photocatalysts are characterized by TEM and SEM.
Key words： photocatalyst; pesticides; wastewater treatment
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