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- W2849016886 abstract "Trimethoprim (TMP), a typical antibiotic pharmaceutical, has received extensive attention due to its potential biotoxicity. In this study, CuFe2O4, which was used to decorate MWCNTs via a sol-gel combustion synthesis method, was introduced to generate powerful radicals from peroxymonosulfate (PMS) for TMP degradation in an aqueous solution. The results showed that almost 90% of TMP was degraded within 24 min with the addition of 0.6 mM PMS and 0.2 g L-1 CuFe2O4/MWCNTs. The degradation rate was enhanced with the increase in initial PMS doses, catalyst loading and pH. A fairly low leaching of Cu and Fe was observed during the reaction, indicating the high potential recyclability and stability of CuFe2O4/MWCNTs. Electron paramagnetic resonance analysis confirmed that the CuFe2O4/MWCNT-PMS system had the capacity to generate ·OH and SO4˙-, whereas quenching experiments further confirmed that the catalytic reaction was dominated by SO4˙-. A total of 11 intermediate products of TMP was detected via mass spectrometry, and different transformation pathways were further proposed. Overall, this study showed a systematic evaluation regarding the degradation process of TMP by the CuFe2O4/MWCNT-PMS system." @default.
- W2849016886 created "2018-07-19" @default.
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- W2849016886 date "2018-01-01" @default.
- W2849016886 modified "2023-10-05" @default.
- W2849016886 title "Sulfate radical-induced transformation of trimethoprim with CuFe<sub>2</sub>O<sub>4</sub>/MWCNTs as a heterogeneous catalyst of peroxymonosulfate: mechanisms and reaction pathways" @default.
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- W2849016886 doi "https://doi.org/10.1039/c8ra04103b" @default.
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