Fig. 1: Structural identity of the CuFeS2 NCs. | Nature Nanotechnology

Fig. 1: Structural identity of the CuFeS2 NCs.

From: Fast and selective reduction of nitroarenes under visible light with an earth-abundant plasmonic photocatalyst

Fig. 1

a,b, TEM images of the CuFeS2 NCs. Scale bars, 400 nm (a); 100 nm (b). Insets: the EDS (a); the selected area electron diffraction of the NCs (b). c, High-resolution TEM image of a single NC with marked lattice fringes. Scale bar, 5 nm. d–f, High-angle annular dark field–scanning TEM image (d) of a single NC with the corresponding EDS chemical mapping for Cu (e), S (f) and Fe (g). Scale bars, 8 nm. h, Combined mapping for Cu, Fe and S. Scale bar, 8 nm. i–k, UV–vis absorption spectra (beam path-length, 1 cm) (i), XRD analysis (j) and FTIR spectra (k) of CuFeS2 NCs before (CuFeS2-OLA) and after (CuFeS2-S2−) the ligand exchange reaction. OLA, oleylamine.

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