Abstract
The magnetic nanocomposite TiO2/Fe3O4 coupled with persulfate (PS) under UV irradiation for methyl orange (MO) degradation in aqueous solution was investigated in this study. The features of TiO2/Fe3O4 were characterized via SEM, XPS, UV–Vis, and MPMS. The effect of several operating parameters including PS concentration, TiO2/Fe3O4 dosage, MO concentration, and pH was assessed in UV/TiO2/Fe3O4/PS system. The removal of MO via UV/TiO2/Fe3O4/PS reached 99.5% under the following conditions: [PS] = 60 mM; [TiO2/Fe3O4] = 0.4 g/L; [MO] = 20 mg/L; pH = 3.0; T = 25 ℃; UV = 300 W; and t = 150 min. In addition, possible mechanisms of TiO2/Fe3O4 photocatalysis, PS activation, and MO degradation were analyzed. Moreover, TiO2/Fe3O4 was easily separated from the reacted solution by magnets and had relatively stable recycling performance. Overall, the application of UV/TiO2/Fe3O4/PS can be introduced as an effective method for MO and even dyes removal.
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All data generated or analyzed during this study are included in this published article (and its supplementary information files).
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Funding
This work was supported by the Jilin Provincial Department of Science and Technology of China (No. YDZJ202201ZYTS681 and No. YDZJ202201ZYTS630).
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Song, T., Gao, Y., Hu, R. et al. Degradation of Methyl Orange in Aqueous Solution via Magnetic TiO2/Fe3O4 Conjugated with Persulfate. Water Air Soil Pollut 234, 508 (2023). https://doi.org/10.1007/s11270-022-05982-2
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DOI: https://doi.org/10.1007/s11270-022-05982-2