Investigation of Adsorption Behavior of Cu₂O Submicro-Octahedra towards Congo Red

Figure 6

(a) The unit cell of the cuprite Cu₂O structure. The blue spheres represent copper atoms and yellow spheres indicate oxygen atoms. ((b)–(d)) The atomic arrangements in the (100), (110), and (111) planes of the Cu₂O structure, respectively.

(a)

(b)

(c)

(d)