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- W3081332904 endingPage "117617" @default.
- W3081332904 startingPage "117617" @default.
- W3081332904 abstract "A core–shell structured catalyst (Fe3O4@C/CDs-Ag) for persulfate activation and efficient oxidation of penicillin was synthesized using a hydrothermal method and chemical reduction. Fe3O4 nanoparticles with a diameter of 5–20 nm composed the multi-cores which encapsulated by amorphous carbon and 3–10 nm carbon dots while Ag nanoparticles (5–10 nm) were formed on the shell. Fe3O4@C/CDs-Ag had a specific surface area of 26.01 m2/g and a saturation magnetization of 21.29 emu/g. Penicillin was removed in short time by Fe3O4@C/CDs-Ag activated persulfate system, which could be attributed to the efficient synergy of Fe3O4, carbon dots, and Ag in the core–shell structured catalyst. Ag nanoparticles and carbon dots were served as vehicles and active sites, respectively, and the system could generate free radicals efficiently and continuously. Further, the Fe3O4@C/CDs-Ag showed stability and minimal Fe/Ag leakage. The radicals were identified by electron spin resonance spectroscopy and the radical contributions were determined via scavenger experiments. The degradation pathways of penicillin were elucidated." @default.
- W3081332904 created "2020-09-01" @default.
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- W3081332904 date "2021-01-01" @default.
- W3081332904 modified "2023-10-15" @default.
- W3081332904 title "Activation of persulfate by core–shell structured Fe3O4@C/CDs-Ag nanocomposite for the efficient degradation of penicillin" @default.
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- W3081332904 doi "https://doi.org/10.1016/j.seppur.2020.117617" @default.
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