Research Article

Shift the Photocatalytic Activity of P25 TiO2 Nanoparticles toward the Visible Region upon Surface Modification with Organic Hybrid of Phosphotungstate

Figure 2

SEM images of TiO2-PTA-HMT-MB (a) and TiO2 (b) at magnifications of 10000, 20000, 45000, and 200000 (from top to down).
(a)
(b)