Photodegradation of Methylene Blue Using Carbon-Doped ZnSn(OH)₆ Composite Coated on Membrane

Figure 4

Tetrahedral zinc stannate (A), octahedral zinc stannate (B), and cubic zinc stannate (C) for 2 h (a), 4 h (b), and 6 h (c) preparation time.

(A)

(B)

(C)