Abstract

The synergistic effect of oxygen releasing and oxidizing power of calcium peroxide (CaO2) provides considerable advantages to environmental issues. In this research, a novel productive method to synthesize high-purity nanoparticle was reported. Ca(NO3)2 was used as an effective precursor under mild conditions. High-purity CaO2 with nanosized spherical particle was observed. Disinfection effect of the CaO2 powders was investigated using Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Surprisingly, photoactivity of CaO2 was discovered. The CaO2 exhibited intriguing photoactivity on dye oxidation and reduction under visible light. This method produces high-purity nanoparticulate CaO2 for pilot-scale testing.

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