Fabrication of Core-Shell Structural SiO₂@H₃[PM₁₂O₄₀] Material and Its Catalytic Activity

Figure 6

Monitor process of degradation of ST with different catalyst ((a) SiO₂@PW₁₂, (b) SiO₂@PMo₁₂); the reaction time was 0, 5, 10, 20, 30, 40, 50, and 60 min, respectively (orientation of arrow).

(a)

(b)