Abstract
In this study, a porous carbon catalyst (Co1(MgO)1/C) derived from the idea of “reducing metal element/irreducible oxides” was successfully synthesized, characterized and used to activate PMS for removing metronidazole (MNZ) from water. The Co1(MgO)1/C presented excellent catalytic performances on PMS activation for MNZ removal in a wide pH range and complex water environments. Various advanced characterization technologies and density functional theory (DFT) calculations indicated that Co1(MgO)1/C possessed a high concentration of oxygen vacancies (OV) (OV = 51.3%), which successfully induced the triple degradation pathway of MNZ in the Co1(MgO)1/C-PMS systems. Further analysis revealed that the triple MNZ degradation pathway was dominated by singlet oxygen, and supplemented by sulfate radical and electron transfer. Consequently, this study not only expands the existing synthesis methods for high-concentration OV materials but also provides new insights into the directional regulation of non-radical degradation pathways of pollutants.
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 callDisclaimer: 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.
