Photodegradation of Rhodamine B in Presence of CaO and NiO-CaO Catalysts

Figure 2

SEM micrographs of synthesized catalysts: (a) CaO-0.5, (b) CaO-2, (c) CaO-5, and (d) NiO-CaO (magnification: 10,000x).

(a)

(b)

(c)

(d)