Self-Cleaning Glass of Photocatalytic Anatase TiO2@Carbon Nanotubes Thin Film by Polymer-Assisted Approach

Due to the good photocatalytic activity, the TiO 2 @CNTs thin film is highly desirable to apply to the self-cleaning glass for green intelligent building. Here, the TiO 2 @CNTs thin film has been successfully achieved by polymer-assisted approach of an aqueous chemical solution method. The polymer, polyethylenimine, aims to combine the Ti 4+ with CNTs for film formation of TiO 2 @CNTs. The resultant thin film was uniform, highly transparent, and super-hydrophilic. Owing to fast electron transport and effectively hindering electron-hole recombination, the TiO 2 @CNTs thin film has nearly twofold photocatalytic performance than pure TiO 2 . The TiO 2 @CNTs thin films show a good application for self-cleaning glasses.