Application research on polymer cement mortar incorporated with nitrogen modified nano-TiO_2 photocatalysis material

A kind of nitrogen modified nano-TiO2 photocatalysis material was prepared and a series application research was made on it. Results indicate that the photocatalysis efficiency of nitrogen modified nano-TiO2 powder increases by 40% over that of P25 nano-TiO2 powder on the market. The photocatalysis efficiency of cement mortar incorporated with the nano-TiO2 powder increases with the content of powder increasing. When the adding amount of powder is 10%,the photocatalysis efficiency of cement mortar is over 60% . This series of cement mortar,polymer cement mortar and polymer cement photocatalysis material can be extensively used for degradation NOX from tail gas of automobile.