Abstract
BackgroundCatalytic ozonation is a commonly used technique in deep treatment of water. Magnesium oxide is an effective catalyst in ozonation, but how to effectively separate and improve its stability remains big challenge. MethodThe magnetic core-shell Fe3O4@SiO2@MgO was prepared by co-precipitation method, and the prepared catalyst could be easily recovered through magnetic separation. Significant findingsOzonation of N, N-dimethylacetamide (DMAC) was used to test the performance of Fe3O4@SiO2@MgO. The removal fraction of DMAC by Fe3O4@SiO2@MgO catalytic ozonation was 99.96% in 12 min, which was almost 4.3 times that of ozonation alone under the same conditions. In addition, the mineralization rate of DMAC at 12 min was 43.70%, much higher than that of ozone alone (11.90%). The recycling test manifested the excellent stability and recoverability of Fe3O4@SiO2@MgO, indicating the formed composite is a potential practical catalyst. The possible DMAC degradation pathways and reaction mechanism of Fe3O4@SiO2@MgO/O3 process were proposed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Taiwan Institute of Chemical Engineers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
