International Journal of Photoenergy

Research Article

Photocatalytic Properties of Nitrogen-Doped Bi12TiO20 Synthesized by Urea Addition Sol-Gel Method

Figure 4

(a) Absorption spectra of films of bismuth titanate (Bi12TiO20, B i 1 2 T i O 2 0 − 𝑥 N 𝑥 ( 𝑥 = 0 . 0 1 ) and B i 1 2 T i O 2 0 − 𝑦 N 𝑦 ( 𝑦 = 0 . 0 3 ) ) and (b) UV-Vis diffuse reflection spectra of powders Bi12TiO20, B i 1 2 T i O 2 0 − 𝑥 N 𝑥 ( 𝑥 = 0 . 0 1 ) , B i 1 2 T i O 2 0 − 𝑦 N 𝑦 ( 𝑦 = 0 . 0 3 ) , B i 1 2 T i O 2 0 − 𝑧 N 𝑧 ( 𝑧 = 0 . 0 6 ) , and TiO2-P25.
135132.fig.004a
(a)
135132.fig.004b
(b)