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Figure 3 | Nanoscale Research Letters

Figure 3

From: Bimetallic core/shell nanoparticle-decorated 3D urchin-like hierarchical TiO2 nanostructures with magneto-responsive and decolorization characteristics

Figure 3

Typical morphology, structure, and composition of the hierarchical Co@Au/TiO 2 nanostructures. SEM images (a, b), dark-field and bright-field TEM images (c-f), high-resolution TEM images (g, h), the local elemental mapping (i), and corresponding EDX spectra of the nanoparticles on the tips of TiO2 nanorods (j) for the 3D urchin-like hierarchical Au@Co/TiO2 nanostructures. The inset in (j) shows the response of Au@Co/TiO2 to a magnet. (Scale bar = 1 μm for (a), scale bar = 100 nm for (b), scale bar = 500 nm for (c), scale bar = 100 nm for (d-g), scale bar = 10 nm for (h), scale bar = 50 nm for (i)).

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