Journal
SEPARATION AND PURIFICATION TECHNOLOGY
Volume 108, Issue -, Pages 139-142Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.seppur.2013.02.018
Keywords
Potassium niobate; Graphene; Composite; Nanoscroll; Photocatalysis
Categories
Funding
- National Nature Science Foundation of China [20933007]
- Top disciplines Construction Foundation of Shanghai City [405ZK120017001, 405ZK120021001]
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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. (C) 2013 Elsevier B.V. All rights reserved.
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