Fabrication, Modification, and Emerging Applications of TiO2 Nanotube Arrays by Electrochemical Synthesis: A Review
Figure 5
SEM image of TNAs (A, B) and Cu2O/TiO2 NTAs (C). TEM image of Cu2O/TiO2 NTAs (D). (E) Photoresponse of Cu2O/TiO2 NTAs (a, c) and TNAs (b, d) with (a, b) or without (c, d) a bias potential of 0.5 V (versus SCE) under one sun visible light irradiation. (F) Comparison of photocatalytic, electrocatalytic, and photoelectrcatalytic degradation of RhB under visible light irradiation for Cu2O/TiO2 NTAs. (G) Schematic illustration of photoelectrocatalytic degradation of RhB under visible light irradiation. (H) Comparison of RhB degradation efficiency using Cu2O/TiO2 NTAs in the process of photoelectrocatalysis (right) with the sum of photocatalysis and electrolysis (left).
