Multicatalytic properties of nanoparticle CaO<inf>2</inf> synthesized by a novel, simple and economical method for wastewater treatment

• Main Authors: Kaewdee P., Chandet N., Rujijanagul G., Randorn C.
• Format: Journal
• Published: 2017
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84977265130&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/41544
• Institution: Chiang Mai University

© 2016 Elsevier B.V. The synergistic effect of oxygen releasing and oxidizing power of calcium peroxide (CaO 2 ) provides considerable advantages to environmental issues. In this research, a novel productive method to synthesize high-purity nanoparticle was reported. Ca(NO 3 ) 2 was used as an effective precursor under mild conditions. High-purity CaO 2 with nanosized spherical particle was observed. Disinfection effect of the CaO 2 powders was investigated using Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Surprisingly, photoactivity of CaO 2 was discovered. The CaO 2 exhibited intriguing photoactivity on dye oxidation and reduction under visible light. This method produces high-purity nanoparticulate CaO 2 for pilot-scale testing.