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- W4200580457 abstract "In the present work, mesoporous silica spheres-doping CuO (CuO/MSS) was prepared via a facile hydrothermal method. It acted as a peroxydisulfate (PDS) activator for the removal of bisphenol A (BPA). X-Ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDS) showed that CuO was successfully synthesized and silica spheres were doped in CuO. Nitrogen sorption isotherm showed that CuO/MSS, which had a high specific surface area and a narrow pore size distribution, exhibited a mesoporous structure. The effect of initial pH, PDS dosage, catalyst amount, and activation temperature was assessed. A removal efficiency of over 80% was observed after five consecutive cycles, suggesting the superior stability of the catalyst. X-ray photoelectron spectroscopy (XPS), radical quenching experiments, and electrochemical evaluation showed that BPA removal was dominated by the electron transfer among PDS, BPA, and the surface of CuO/MSS (non-radical pathway), while SO4·- and OH· radicals had a minor contribution (radical pathway). In addition, the degradation pathways of BPA were proposed according to the intermediates. Overall, this study indicates that CuO/MSS is a promising effective PDS activator to address the drawbacks of the classical Fenton process." @default.
- W4200580457 created "2021-12-31" @default.
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- W4200580457 date "2022-04-01" @default.
- W4200580457 modified "2023-10-17" @default.
- W4200580457 title "Activation of persulfate by mesoporous silica spheres-doping CuO for bisphenol A removal" @default.
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- W4200580457 doi "https://doi.org/10.1016/j.envres.2021.112529" @default.
- W4200580457 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34883081" @default.
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