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. 2017 Aug 11;7(1):7979.
doi: 10.1038/s41598-017-07342-1.

BiVO4-rGO with a novel structure on steel fabric used as high-performance photocatalysts

Dong Fang  1 , Xiujuan Li  2 , Hui Liu  3 , Weilin Xu  2 , Ming Jiang  4 , Wenbin Li  5 , Xin Fan  6
Affiliations

BiVO4-rGO with a novel structure on steel fabric used as high-performance photocatalysts

Dong Fang et al. Sci Rep. .

Erratum in

Abstract

A high-performance and novel photocatalyst of BiVO4-reduced Graphene Oxide (BiVO4-rGO) nanocomposite was prepared by a facile hydrothermal method. The photocatalyst was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electronic microscopy, UV-Vis diffusion reflectance spectroscopy, photoluminescence spectroscopy and UV-Vis adsorption spectroscopy, respectively. The visible-light photocatalytic activity was evaluated by oxidation of methyl orange (MO) under simulated sunlight irradiation. The results show that the BiVO4-rGO nanocomposites exhibit enhanced photocatalytic performance for the degradation of MO with a maximum removal rate of 98.95% under visible light irradiation as compared with pure BiVO4 (57.55%) due to the increased light absorption intensity and the degradation of electron-hole pair recombination in BiVO4 with the introduction of the rGO.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Figure 1
Figure 1
(a) XRD patterns of pristine BiVO4 and the BiVO4-rGO nanocomposites, (b) Raman spectra of the BiVO4, BiVO4-0.057 composite, and pure graphene oxide.
Figure 2
Figure 2
(a) SEM, (B) and (C) low- and high-magnification TEM images of the pure BiVO4, (d) SEM, (e) and (f) low- and high-magnification TEM images of the BiVO4-0.057 nanocomposites. Inset in (a) and (d) is the corresponding digital picture of sample, (h) EDS spectrum of BiVO4-0.057 nanocomposite.
Figure 3
Figure 3
(a) and (b) SEM images of BiVO4-0.029 and BiVO4-0.086; (c) schematic illustration of the synthesis procedure of the BiVO4 nanowires and BiVO4-rGO nanosheets.
Figure 4
Figure 4
(a) Survey XPS spectra for BiVO4 and BiVO4-0.057, (b) Bi 4 f, (c) V 2p and (d) C 1 s for BiVO4-0.057.
Figure 5
Figure 5
(a) The adsorption removal of MO in the dark by BiVO4-rGO nanocomposite arrays (black) and BiVO4 nanowire arrays (red), (b) Time-online photocatalytic performance of BiVO4 and BiVO4-rGO nanocomposite photocatalysts with different concentration of GO for the degradation of MO under simulated sunlight.
Figure 6
Figure 6
(a) and (c) UV-vis diffuse reflectance and photoluminescence spectral of bare BiVO4 and BiVO4-rGO nanocomposites, (b) plots of (αhν)2 versus photon energy (hν) of BiVO4 and BiVO4-0.057 nanocomposites, (d) schematic diagram for illuminating the charge behavior at the interface of BiVO4 and rGO, (e) Photocurrent densities of bare BiVO4 nanowire arrays (black) and BiVO4-rGO nanocomposite (red) under simulated sunlight, (f) 6 cycles of the photocatalytic degradation of MO using BiVO4-rGO as the photocatalyst under visible-light irradiation for 60 min.
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