TiO2及TiO2-SiO2复合氧化物特性及其降解水中有机污染物的光催化活性

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TiO₂及TiO₂-SiO₂复合氧化物特性及其降解水中有机污染物的光催化活性

周亚松

State Key Laboratory of Heavy Oil Processing, University of Petroleum, Beijing,102249,
China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-12-28 发布日期:2003-12-28
通讯作者: 周亚松

Preparation of Photocatalytic TiO₂ and TiO₂-SiO₂ Particles and Application to Degradation
of Trace Organics in Aqueous Solution

Zhou Yasong

State Key Laboratory of Heavy Oil Processing, University of Petroleum, Beijing,102249,
China

Received:1900-01-01 Revised:1900-01-01 Online:2003-12-28 Published:2003-12-28
Contact: Zhou Yasong

摘要/Abstract

摘要：

TiO₂and TiO₂-SiO₂ photocatalysts were prepared by sol-gel and supercritical CO₂ fluid
drying method and characterized by X-ray diffraction (XRD), transmission electron
microscope (TEM), etc. Their catalytic properties were tested through the photocatalytic
degradation of phenol and aniline in wastewater. The results show that the developed
fluidized photocatalytic reactor (FPR) and TiO₂ catalyst had better performance in
degrading pollutants as compared with slurry photocatalytic reactor (SPR) and commercial
TiO₂ catalyst. The composition and crystal form of TiO₂-SiO₂ composite oxide had obvious
influence on catalytic effect and TiO₂-SiO₂ photocatalysts showed better catalytic activity
and stability.

关键词: titanium dioxide;composite oxide;photocatalytic activity;degradation

Abstract: TiO₂and TiO₂-SiO₂ photocatalysts were prepared by sol-gel and supercritical CO₂ fluid
drying method and characterized by X-ray diffraction (XRD), transmission electron
microscope (TEM), etc. Their catalytic properties were tested through the photocatalytic
degradation of phenol and aniline in wastewater. The results show that the developed
fluidized photocatalytic reactor (FPR) and TiO₂ catalyst had better performance in
degrading pollutants as compared with slurry photocatalytic reactor (SPR) and commercial
TiO₂ catalyst. The composition and crystal form of TiO₂-SiO₂ composite oxide had obvious
influence on catalytic effect and TiO₂-SiO₂ photocatalysts showed better catalytic activity
and stability.

Key words: titanium dioxide, composite oxide, photocatalytic activity, degradation

周亚松. TiO₂及TiO₂-SiO₂复合氧化物特性及其降解水中有机污染物的光催化活性[J]. CIESC Journal.

Zhou Yasong. Preparation of Photocatalytic TiO₂ and TiO₂-SiO₂ Particles and Application to Degradation
of Trace Organics in Aqueous Solution[J]. .

TiO₂及TiO₂-SiO₂复合氧化物特性及其降解水中有机污染物的光催化活性

Preparation of Photocatalytic TiO₂ and TiO₂-SiO₂ Particles and Application to Degradation
of Trace Organics in Aqueous Solution

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