Photocatalytic materials, however, there has been the problems of low quantum efficiency and low light energy utilization. To improve the utilization of visible light and the quantum efficiency is the aim of the research of photocatalytic technology. 但是,光催化材料一直存在光能利用率低和量子效率低的问题,所以提高可见光的利用率和量子效率一直是光催化技术的研究目标。
Moreover, the low quantum efficiency and limited absorption in UV light region of TiO2 restrain its application in practice. Modification of TiO2 is effective method to improve the photocatalytic activity and realize absorption of visible light, hence utilize the photo energy more efficiently. 此外,由于TiO2的量子效率偏低且只能响应紫外光,限制了TiO2的实际应用,可以通过对TiO2改性提高其光催化效率和实现对可见光的响应,更充分地利用光能。