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首页> 外文期刊>RSC Advances >Synthesis of the visible-light-driven Ag3VO4/Ag3PO4/Ag photocatalysts with enhanced photocatalytic activity
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Synthesis of the visible-light-driven Ag3VO4/Ag3PO4/Ag photocatalysts with enhanced photocatalytic activity

机译：具有增强的光催化活性的可见光驱动Ag3VO4 / Ag3PO4 / Ag光催化剂的合成

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摘要

A novel visible-light-driven Ag3VO4/Ag3PO4/Ag photocatalyst was successfully synthesized via an anion-exchange reaction and characterized by X-ray diffraction, field emission scanning electron microscopy, X-ray photoelectron spectroscopy, UV-vis diffuse-reflectance spectroscopy and Fourier transform infrared spectroscopy. The photocatalytic activities of prepared catalysts were evaluated by degradation of acid blue 92 (AB92) aqueous solutions under visible light irradiation. The photocatalytic results indicated that the synthesized Ag3VO4/Ag3PO4/Ag hybrid displays a significantly enhanced activity in degradation of acid blue 92 under visible light compared with pure Ag3VO4. The improved photocatalytic activity can be attributed to the efficient separation of photo-induced electrons and holes in the composite. A possible mechanism has been proposed for this improvement.
机译：通过阴离子交换反应成功地合成了一种新型可见光驱动的AG3VO4 / Ag3PO4 / Ag光催化剂，并通过X射线衍射，现场发射扫描电子显微镜，X射线光电子体光谱，UV-Vis扩散反射光谱和 傅里叶变换红外光谱。 通过在可见光照射下降解酸性蓝92（AB92）水溶液来评估制备催化剂的光催化活性。 光催化结果表明，与纯Ag3VO4相比，合成的Ag3VO4 / Ag3PO4 / Ag杂种在可见光下显示出在可见光下酸蓝92降解的显着增强的活性。 改善的光催化活性可归因于复合材料中的光诱导的电子和孔的有效分离。 已经提出了这种改进的可能机制。

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