Highly Efficient Photocatalytic Hydrogen on CoS/TiO₂ Photocatalysts from Aqueous Methanol Solution

Figure 4

(a) SEM image of 20 wt% CoS/TiO₂, (b) SEM image of 40 wt% CoS/TiO₂, (c) SEM image of 60 wt% CoS/TiO₂, and (d) EDX spectrum of 20 wt% CoS/TiO₂.

(a)

(b)

(c)

(d)