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Citation: Yan Xiuru, Song Kuanxiu, Huo Mingliang, Li Xiaohong, Wang Jianping, Yin Xinwang. Preparation of TiO₂/SiO₂ and Photocatalytic Degradation of Dichlorvos on It[J]. Chinese Journal of Applied Chemistry, ;1999, 16(4): 94-96. shu

Preparation of TiO₂/SiO₂ and Photocatalytic Degradation of Dichlorvos on It

1.
a Department of Chemistry, Tianjin University, Tianjin 300072;
2.
b Tianjin Pesticide Corporation, Tianjin

Received Date: 26 October 1998
Available Online: 9 April 1999
Fund Project: 天津市自然科学基金资助课题(973606711) (973606711)

The TiO₂/SiO₂ coating particles have been prepared by a sol-gel method with Ti(OC₄H₉)₄ and SiO₂ as precursors. The IR results indicate the existence of Si-O-Ti bonds on the catalyst. The crystalline phase of coating thin films(TiO₂) was studied by XRD. The amount of TiO₂ bound to the SiO₂ was determined by spectrophotometry. The TiO₂/SiO₂ can be used repeatedly and shows a higher photocatalytic decomposition rate for dichlorvos than TiO₂.
- dichlorvos,
- photocatalytic degradation,
- titanium dioxide,
- so-gel method,
- surface coating
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通讯作者: 陈斌, bchen63@163.com

Preparation of TiO₂/SiO₂ and Photocatalytic Degradation of Dichlorvos on It