Preparations, Characterizations, and a Comparative Study on Photovoltaic Performance of Two Different Types of Graphene/TiO₂ Nanocomposites Photoelectrodes

Figure 9

XPS spectra of various graphene based materials: (a) C 1s of GO (before heat treatment); (b) C 1s of GO (after heat treatment); (c) C 1s of rGO (before heat treatment); (d) C 1s of rGO (after heat treatment); (e) C 1s of Ti@rGO-01; (f) Ti 2p of Ti@rGO-01.

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