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Low-temperature fabrication of Bi25FeO40/rGO nanocomposites with efficient photocatalytic performance under visible light irradiation

机译:Bi 25 FeO 40 / rGO纳米复合材料的低温制备及其在可见光下的高效光催化性能

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Bismuth ferrite/reduced graphene oxide (Bi25FeO40/rGO) nanocomposites have been synthesized by a hydrothermal method, followed by a simple room temperature liquid phase process. Interestingly, X-ray diffraction and scanning electron microscopy analyses indicated that the presence of rGO triggered the transformation of perovskite phase BiFeO3 to sillenite phase Bi25FeO40 at room temperature, while the spindle-like morphology was maintained. Under visible light irradiation, the obtained Bi25FeO40/rGO nanocomposites exhibit high photocatalytic performance for the degradation of methyl orange (MO), suggesting potential applications in photocatalytic and related areas. Furthermore, the function of rGO for the enhancement of photocatalytic activity and the probable mechanism were also discussed on the basis of the results.
机译:水热法合成了铋铁氧体/氧化石墨烯(Bi 25 FeO 40 / rGO)纳米复合材料,然后进行简单的室温液相工艺。有趣的是,X射线衍射和扫描电子显微镜分析表明,rGO的存在触发了钙钛矿相BiFeO 3 转变为亚硅酸盐相Bi 25 FeO 40 在室温下保持纺锤状形态。在可见光照射下,所得的Bi 25 FeO 40 / rGO纳米复合材料表现出较高的光催化降解三氯甲烷的性能。甲基橙(MO),暗示在光催化和相关领域的潜在应用。此外,在结果的基础上,还讨论了rGO增强光催化活性的功能和可能的机理。

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