کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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641872 | 1457011 | 2013 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Reduced graphene oxide/potassium niobate composite nanoscrolls with enhanced photocatalytic activity for dye degradation Reduced graphene oxide/potassium niobate composite nanoscrolls with enhanced photocatalytic activity for dye degradation](/preview/png/641872.png)
Reduced graphene oxide/potassium niobate composite nanoscrolls were prepared by incorporating reduced graphene oxide (RGO) sheets into potassium niobate sheets at room temperature. The composite nanoscrolls were characterized by X-ray diffraction, transmission electron microscopy, UV–vis diffusion reflectance spectra and fluorescence spectra. For the photocatalytic degradation of rhodamine B (RhB) under UV light, the degradation efficiency of the composite nanoscrolls can reach 68.3% after irradiation for 30 min, increased 34.3% relative to the pure potassium niobium nanotubes. The dramatically enhanced activity can be attributed to the synergistic contribution of both a retarded charge recombination rate caused by a high electronic mobility of RGO and an increased surface adsorption of RhB.
.Figure optionsDownload as PowerPoint slideHighlights
► Graphene/potassium niobate composite nanoscrolls were prepared by a simple procedure.
► The nanoscrolls showed a higher photocatalytic activity for degradation of RhB.
► The synergistic effects of adsorption and charge separation played vital roles.
► The composite nanoscrolls had potential applications in environmental issues.
Journal: Separation and Purification Technology - Volume 108, 19 April 2013, Pages 139–142