【摘 要】
：
A facile deposition method has been developed for large-scale synthesis of visible-light-driven AgBr/montmorillonite composite catalyst for the first time.The as-synthesized samples were characterized by X-ray diffraction (XRD),X-ray photoelectron spectro
【机 构】
：
College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210,
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
A facile deposition method has been developed for large-scale synthesis of visible-light-driven AgBr/montmorillonite composite catalyst for the first time.The as-synthesized samples were characterized by X-ray diffraction (XRD),X-ray photoelectron spectroscopy (XPS),Fourier transform infrared spectroscopy (FT-IR),transmission electron microscopy (TEM),UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and Brunauer-Emmett-Teller (BET) surface area analysis,respectively.Through the combined action of adsorption and photodegradation,the as-prepared AgBr/montmorillonite composite exhibited a higher removal efficiency for rhodamine B (RhB) than that of Na-montmorillonite and AgBr.For the methyl orange (MO) removal,the AgBr/montmorillonite composite possessed a superior photocatalytic performance compared with Namontmorillonite and AgBr.The enhanced photocatalytic activity of AgBr/montmorillonite composite can be attributed to the effective separation of the electron-hole pairs.In AgBr/montmorillonite suspension,the superoxide radicals are the main reactive oxygen species for dye degradation under visible light illumination.
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