【摘 要】
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A series of Bi2S3-BiOCl composites with two-dimensional(2D)square-like structures were prepared via a two-step anion exchange route. X-ray diffraction(XRD),scan
【机 构】
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Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,School of Enviro
论文部分内容阅读
A series of Bi2S3-BiOCl composites with two-dimensional(2D)square-like structures were prepared via a two-step anion exchange route. X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and diffuse reflectance spectra(DRS) were used to investigate the properties of the as-prepared Bi2S3-BiOCl heterostructures.The coupling of BiOCl and Bi2S3induced enhanced photoabsorption efficiency and bandgap narrowing. A reactive brilliant red X-3B dye was used as a contaminant to test the photocatalytic activity of the obtained Bi2S3-BiOCl samples under visible light irradiation. The sample Bi2S3-BiOCl with a mass ratio of 8:4 exhibited the highest photodegradation efficiency, which was six times higher than that of pure BiOCl. In addition, a mechanism for the enhancement of photocatalytic activity is proposed.
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