期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 280, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.seppur.2021.119783
关键词
Co-N-C@SiO2; Core-shell catalyst; Peroxymonosulfate; Degradation
Co-N-C@SiO2 composite material, with Co and N-doped carbon as core and SiO2 as shell, was successfully synthesized by template method. The SiO2 shell increased active sites and stability, showing potential for application in SMX degradation reactions.
Co-N-C@SiO2 with Co, N doped carbon as core and SiO2 as shell was successfully synthesized by template method, and SiO2 shell was about 43 wt%. Impressively, the SiO2 shell increased the active sites of the core in CoN-C@SiO2 preparation, and reduced the loss of active sites during use. Co-N-C@SiO2/PMS was a O-1(2) dominated non-radical reaction, which was less interfered by solution pH and water constituents. In addition, Co-N-C@SiO2 possessed better cycling performance compared with Co-N-C. Finally, the possible SMX degradation pathways were presented based on the identified intermediate products.
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