摘要：

Graphite-like C₃N₄ hybridized BiOBr photocatalysts have been synthesized through an EG-assisted solvothermal process in the presence of reactable ionic liquid 1-hexadecyl-3-methylimidazolium bromide ([C₁₆mim]Br). The as-prepared samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy and photocurrent. The g-C₃N₄/BiOBr photocatalysts showed high efficiency for the degradation of bisphenol A (BPA) and rhodamine B (RhB) under visible light irradiation. The results assumed that a loading amount of g-C₃N₄ over BiOBr lead to an increase of the photocatalytic activity under visible light irradiation and showed much higher photocatalytic activity than that of pure BiOBr sample. The enhanced photocatalytic performance could be attributed to the high separation efficiency of the photogenerated electron–hole pairs. The trapping experiments of radicals showed that hole was the main reactive species for the photocatalytic degradation of RhB. A possible mechanism of g-C₃N₄/BiOBr on the enhancement of visible light performance was proposed.Article Outline1. Introduction2. Experimental section2.1. Material and sample preparation2.2. Preparation of graphitic carbon nitride (g-C₃N₄) materials2.3. Preparation of g-C₃N₄/BiOBr hybrid materials2.4. Characterization2.5. Photocatalytic activity measurement2.6. Photoelectrochemical measurements3. Results and discussion3.1. XRD analysis3.2. FT-IR analysis3.3. SEM, TEM and EDS analyses3.4. Optical absorption properties3.5. Photocatalytic activity3.6. Possible photocatalytic mechanism of g-C₃N₄/BiOBr composite4. ConclusionsAcknowledgmentReferences

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