Research / 2022 / Article / Fig 1

Research Article

Direct Electron Transfer from Upconversion Graphene Quantum Dots to TiO2 Enabling Infrared Light-Driven Overall Water Splitting

Figure 1

(a) XRD patterns and (b) FT-IR spectra of the obtained GQDs, TiO2, TiO2/GQDs, and TiO2/r-GQDs. XPS spectra of the TiO2 and TiO2/r-GQDs: (c) survey, (d) C1s, (e) O1s, and (f) Ti2p.