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

Figure 3

(a) EDS spectra of TiO₂ NAFs before and after treatment in the mixture of EG and DMF containing different amounts of CuSO₄ at 120°C for 16 h; (b) plot of content of Cu in the film against the amount of CuSO₄ in the solution (see open circles). The curve is the fitting result using a logarithm equation of 𝑦=𝑎+𝑏ln𝑥.

(a)

(b)