Research Article

Heterogeneous Deposition of Cu2O Nanoparticles on TiO2 Nanotube Array Films in Organic Solvent

Figure 8

Schematic diagram for describing the band gap and electron transfer for the Cu2O/TiO2 system. CB, VB, and NHE are the abbreviations of conduction band, valance band, and normal hydrogen electrode, respectively.
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