Visible-Light-Driven Photocatalytic Activity of Magnetic BiOBr/SrFe12O19 Nanosheets
AbstractMagnetic BiOBr/SrFe12O19 nanosheets were successfully synthesized using the hydrothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and UV-visible diffused reflectance spectra (UV-DRS), and the magnetic properties were tested using a vibration sample magnetometer (VSM). The as-produced composite with an irregular flaky-shaped aggregate possesses a good anti-demagnetization ability (Hc = 861.04 G) and a high photocatalytic efficiency. Under visible light (λ > 420 nm) and UV light-emitting diode (LED) irradiation, the photodegradation rates of Rhodamine B (RhB) using BiOBr/SrFe12O19 (5 wt %) (BOB/SFO-5) after 30 min of reaction were 97% and 98%, respectively, which were higher than that using BiOBr (87%). The degradation rate of RhB using the recovered BiOBr/5 wt % SrFe12O19 (marked as BOB/SFO-5) was still more than 85% in the fifth cycle, indicating the high stability of the composite catalyst. Meanwhile, after five cycles, the magnetic properties were still as stable as before. The radical-capture experiments proved that superoxide radicals and holes were main active species in the photocatalytic degradation of RhB. View Full-Text
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Xie, T.; Hu, J.; Yang, J.; Liu, C.; Xu, L.; Wang, J.; Peng, Y.; Liu, S.; Yin, X.; Lu, Y. Visible-Light-Driven Photocatalytic Activity of Magnetic BiOBr/SrFe12O19 Nanosheets. Nanomaterials 2019, 9, 735.
Xie T, Hu J, Yang J, Liu C, Xu L, Wang J, Peng Y, Liu S, Yin X, Lu Y. Visible-Light-Driven Photocatalytic Activity of Magnetic BiOBr/SrFe12O19 Nanosheets. Nanomaterials. 2019; 9(5):735.Chicago/Turabian Style
Xie, Taiping; Hu, Jiao; Yang, Jun; Liu, Chenglun; Xu, Longjun; Wang, Jiankang; Peng, Yuan; Liu, Songli; Yin, Xiuyu; Lu, Yuanzhen. 2019. "Visible-Light-Driven Photocatalytic Activity of Magnetic BiOBr/SrFe12O19 Nanosheets." Nanomaterials 9, no. 5: 735.
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