H₂ Fuels from Photocatalytic Splitting of Seawater Affected by Nano-TiO₂ Promoted with CuO and NiO

Figure 4

Photocatalytic splitting of (a) water and (b) seawater affected by CuO/nano-TiO₂ with (A) 0, (B) 12.5, (C) 25, and (D) 50 mM of the oxalic acid sacrificial reagent.

(a)

(b)