CAJ | 학술논문

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复合可提供对污染物的高浓度吸附环境,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.
TiO2광최화재폐수처리、공기정화등배보영역전시출유인전경.납미TiO2광최화제적부재화시실현기산업화적관건보취지일.다공흡부제여납미TiO2복합가제공대오염물적고농도흡부배경,제고TiO2분산도,해결최화제분리난제,시광최화영역적연구열점지일.본문대근년래국내외다공흡부제여납미TiO2복합적발전정황진행료종술,착중개소료부재형TiO2광최화제적고정화방법、다공흡부제류형이급부재대광최화활성적영향궤리.
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 nano-sized 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-adsorbed concentration and better TiO2 dispersion. In this paper, the 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.