总结了CO2 光催化还原反应中催化剂的应用 ,主要涉及TiO2 、CdS以及铁氧化物 ,由于它们自身在反应中存在着一定的缺陷 ,因而在应用中往往需要对其进行改性 ,以改变其电子结构和光响应特性 ,从而提高反应的光催化效率。另外 ,对催化反应过程所涉及的机理也相应作了介绍 The application of catalysts in CO2 photocatalytic reduction reaction is summarized, mainly related to TiO2, CdS and iron oxides. Because of their own defects in the reaction, they often need to be modified to change their electronic Structure and light response characteristics, thereby enhancing the photocatalytic efficiency of the reaction. In addition, the mechanism involved in the catalytic reaction process is also introduced accordingly