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Fig. 1 | Nanoscale Research Letters

Fig. 1

From: High Photocatalytic Performance of Two Types of Graphene Modified TiO2 Composite Photocatalysts

Fig. 1

SEM images of the a pure TiO2 b 3DGN-TiO2, inset is the pristine 3DGN, c RGO–3DGN–TiO2, and d Raman curves of the RGO and 3DGN; the D peak of the 3DGN is magnified. The images ac show SEM images of the pure TiO2, 3DGN–TiO2, and RGO–3DGN–TiO2. Therein, the inset of image b is the SEM image of origin 3DGN. Figure d display Raman curves of the RGO and 3DGN, the D peak of the 3DGN is magnified. The obvious wrinkle on surface of the 3DGN, which is closely related to its adsorption ability (for pollutants) and loading capacity (for TiO2), is caused by the distinction between thermal expansion coefficients of graphene and Ni substrate

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