Photocatalytic Oxidation of Carbon Monoxide over NiO/SnO_𝟐 Nanocomposites under UV Irradiation

Figure 6

SEM images of the typical morphology and composition of pure (a), 5, 10, 33.3, and 50% Ni doped ((b), (c), (d), and (f), resp.) SnO₂ nanoparticles.

(a)

(b)

(c)

(d)

(e)