对TiO2进行亲水表面改性，产生一种可持续发展的光催化剂用于室外空气净化
Abstract(#br)Recently, TiO 2 photocatalysts have been applied in various ways for outdoor air purification. The main challenge with these applications is the stability of the photocatalysts, as the surface of TiO 2 can be easily deactivated by contaminants found in outdoor environments. For example, it is difficult to remove oily contaminants with water once they are exposed to the photocatalyst surface since the hydrophilicity of TiO 2 is not sufficiently high to allow for self-cleaning.