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• W4387388411 endingPage "119187" @default.
• W4387388411 startingPage "119187" @default.
• W4387388411 abstract "Carbon materials used for catalysis in advanced oxidation processes tend to be obtained from cheap and readily available raw materials. We constructed a carbon material, OSC@Fe3O4, by loading Fe3O4 onto the pyrolyzed hazardous waste oily sludge. OSC@Fe3O4 was then used to activate peroxymonosulfate (PMS) for the removal of tetracycline hydrochloride (TTCH) from water. At 298 K, 0.2 g⋅L−1 of catalyst and 0.3 g⋅L−1 of PMS, the reaction rate constant of the OSC@I-2/PMS system reached 0.079 min−1, with a TTCH removal efficiency of 92.6%. The degradation efficiency of TTCH remained at 81% after five cycles. The specific surface area and pore volume of OSC@I-2 were 263.9 m2⋅g−1 and 0.42 cm3⋅g−1, respectively, which improved the porous structure of the carbon material and provided more active points, thus improving the catalytic performance. N and S were doped into the oily sludge carbon due to the presence of N- and S-containing compounds in the raw oily sludge. N and S doping led to more electron-rich sites with higher negative charges in OSC@I-2 and gave the oily sludge carbon a higher affinity to PMS, thereby promoting its ability to activate PMS. Sulfate radicals (SO4•‾) played a dominant role in the degradation of TTCH, with demethylation and the breaking of double bonds being a possible degradation pathway. A biotoxicity test showed that the microbial toxicity of the degradation intermediates was significantly reduced. This work provides a strategy for the application of PMS-based catalysts derived from waste carbon resources." @default.
• W4387388411 created "2023-10-06" @default.
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• W4387388411 date "2023-12-01" @default.
• W4387388411 modified "2023-10-09" @default.
• W4387388411 title "Activation of peroxymonosulfate by biochar-supported Fe3O4 derived from oily sludge to enhance the oxidative degradation of tetracycline hydrochloride" @default.
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• W4387388411 doi "https://doi.org/10.1016/j.jenvman.2023.119187" @default.
• W4387388411 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37804632" @default.
• W4387388411 hasPublicationYear "2023" @default.
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