氧化锌悬浮液中活性物质的研究

Hydrogen peroxide (H2O2) is considered as one of the primary factors in antibacterial mechanism of zinc oxide powder slurry. The H2O2 generated from the suspensions of zinc oxides with different morphologies under different light excitations were studied according to specified reaction followed by UV-Vis spectrophotometer. The results indicated that H2O2 was detected out from the three kinds of zinc oxide suspensions under simulated sunlight, darkness or UV-light. The productivities of H2O2 from the related three kinds of ZnOs were ranked as T-ZnO, n-ZnO and p-ZnO, whatever the light excited or not. There was no apparent proportional relationship between light conditions and the production of H2O2, and the morphology had more obvious effect than particle size and/or specific surface area.