Effects of Calcination Temperature on Preparation of Boron-Doped TiO₂ by Sol-Gel Method

Figure 2

SEM images of 3% B-TiO₂ samples calcinated at (a) 300°C, (b) 400°C, (c) 500°C, and (d) 600°C, respectively.

(a)

(b)

(c)

(d)