fig1
Figure 1. Characterizations of precatalysts. (A) XRD pattern; (B) Raman spectrum; (C) TEM image; (D) AC-STEM image; (E) HR-TEM image; (F) Elemental mapping of CuO-MoS2/MoO3 nanosheets; XPS spectra of (G) Cu 2p, (H) Mo 3d, (I) S 2p, and (J) O 1s for CuO-MoS2/MoO3 nanosheets.
