吸附剂负载TiO2光催化研究进展
首发时间:2007-12-13
摘要:TiO2光催化在废水处理、空气净化等环保领域展示出诱人前景。纳米TiO2光催化剂的负载化是实现其产业化的关键步骤之一。多孔吸附剂与纳米TiO2复合可为其提供高浓度污染环境,提高TiO2分散度,解决催化剂分离难题,是光催化领域的研究热点之一。本文对近年来国内外多孔吸附剂与纳米TiO2复合的发展情况进行了综合评述。着重介绍了负载型TiO2光催化剂的固定化方法、多孔吸附剂类型以及负载对光催化活性的影响机理。
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Progresses of Preparation and Photocatalytic Properties of TiO2/Adsorbent Composite Photocatalyst
Abstract:TiO2 photocatalysis has exhibited attractive perspective in various applications of environmental protection field, especially for wastewater treatment and air purification. It is necessary to immobilize the nanosized titania onto supports for its application. Composite photocatalyst realized by loaded TiO2 onto porous adsorbent exhibited high activity and better separation performance due to the high pollutant concentration and better TiO2 dispersion. In this paper, the recent progress of preparation and photocatalytic properties of TiO2/adsorbent composite photocatalyst was reviewed. Furthermore, immobilization methods, types of porous adsorbent and mechanism of adsorbent for the enhanced photocatalytic activity were emphasized.
Keywords: Titanium dioxide, Adsorbent, Photocatalytic, Loaded, Mechanism
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No.1690911873211975****
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