Research on photocatalytic activity of Nano-TiO2 coating on foam Al by composite electroplating

Nano-TiO₂ coating was deposited by composite electroplating on foam aluminum for the first time. Surface morphology of the films were characterized with Scanning Electron Microscope(SEM).The photocatalytic activity of the samples was tested on the degradation of methylene blue solution under the irradiation of UV lamp. The best technological parameters of composite electroplating were gained by the experiments. The results showed that when annealed for two hours, the sizes of the TiO₂ particles were even and scattered well in the coatings. The samples have good photocatalytic activity. The degradation rate of methylene blue solution reached 47% after 6 hours irradiation of UV lamp.