TiO_2光催化材料的自清洁特性及其应用

Self-cleaning Property and Application of TiO_2 Photocatalytic Material

TiO_2光催化活性自上世纪70年代提出以来在能源和环境领域得到了广泛研究和应用,尤其在自清洁涂料领域。利用TiO_2的光催化功能可以有效的降解涂层表面的各种有机物,而其光致超亲水性又可以清除表面的无机颗粒。TiO_2制备的自清洁涂层具有自清洁能力强、透光性高,附着力强和耐用性好等优势,在光伏电站、汽车镀膜、幕墙等领域均有广泛的应用。本文将对基于TiO_2自清洁涂料的性质、应用和存在的问题进行介绍。

TiO2 photocatalytic activity has been widely studied and applied in the field of energy and environment since it was proposed in 1970 s, especially in the field of self-cleaning coatings. The photocatalytic function of TiO2 can effectively degrade various organic compounds on the surface of the coating, and its photoinduced super hydrophilicity can also remove the inorganic particles on the surface. The self-cleaning coating prepared by TiO2 has the advantages of strong self-cleaning ability, high light transmittance, strong adhesion and good durability, and has been widely used in the fields of photovoltaic power station, automobile coating, curtain wall and so on. This article will introduce the properties, application and existing problems of TiO2 based self-cleaning coatings.