Three-Dimensional Zn_0.5Cd_0.5S/Reduced Graphene Oxide Hybrid Aerogel: Facile Synthesis and the Visible-Light-Driven Photocatalytic Property for Reduction of Cr(VI) in Water

Figure 5

(a–c) SEM images of Zn_0.5Cd_0.5S/RGO aerogel at different magnifications; the inset in (a) is the digital photograph of a monolithic Zn_0.5Cd_0.5S/RGO aerogel. (d) EDS spectrum of Zn_0.5Cd_0.5S/RGO aerogel. (e) The result of elemental contents of C, Zn, Cd, and S contained in Zn_0.5Cd_0.5S/RGO aerogel, which was obtained from the EDS spectrum shown in (d). (f–i) EDS elemental mapping images of C, Zn, Cd, and S within Zn_0.5Cd_0.5S/RGO aerogel, suggesting their uniform distribution in the sample. (j and k) TEM images of Zn_0.5Cd_0.5S/RGO aerogel at low and high magnifications, respectively. (l) HRTEM image of an individual Zn_0.5Cd_0.5S solid solution nanocrystal trapped in the matrix of Zn_0.5Cd_0.5S/RGO hybrid aerogel, showing its (111) lattice plane.

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