Figure 2

XPS spectra of (a) BWO/MG (inset shows a high resolution Mo 3d and S 2 s spectrums in MoS2), (b) W 4 f and (c) Bi 4 f; (d) C 1 s spectra of BWO, (e) MG and (f) BWO/MG.
XPS spectra of (a) BWO/MG (inset shows a high resolution Mo 3d and S 2 s spectrums in MoS2), (b) W 4 f and (c) Bi 4 f; (d) C 1 s spectra of BWO, (e) MG and (f) BWO/MG.