TiO2/AC复合光催化剂的研究进展

摘要

多孔材料与纳米TiO2复合是目前光催化领域的研究热点.多孔材料作为吸附中心可为TiO2光催化剂提供高浓度反应环境,提高催化剂矿化效率并抑制催化剂失活、解决催化剂分离等难题；目前,国内外研究者对TiO2/AC(活性炭)的光催化机理、TiO2与AC的协同作用机理、TiO2/AC的制备方法进行了较为深入的研究.对TiO2/AC复合材料的制备方法进行了综述,比较了各种制备方法的优缺点.%For photo-catalysis field, the combination of porous adsorbent with nano-sized TiO2 photo-catalyst has been the focus of the research. Porous adsorbent can provide high organic concentration environment for loading TiO2 photo-catalyst to enhance the photo-catalytic rate and efficiency, retarding catalyst deactivation and resolving the separation problem of nano-sized TiO2. The photo catalytic mechanism of TiCVAC, synergistic effect between TiO2 and AC, preparation methods of TiＯ2/AC in China and aboard were studied. The preparation methods of TiO2 photocatalyst-activated carbon (AC) composite TiO2/AC were reviewed, and the advantages and disadvantages of the methods were compared.