PPy and TiO 2
PPy
10
8
6
4
2
20
40
60
Time (min)
Volume of evolved hydrogen (mL)
80
100
0
0
Fig. 7.20 Volume of evolved hydrogen on PPy and PPy/TiO 2 as function of illumination time at
pH 6.8 in the presence of S 2 O 3
2À
. (Reproduced with permission (Belabed et al. 2014))
Fig. 7.21 Position of the energy bands at the interface ZnFe 2 O 4 /SrTiO 3 /electrolyte. (Reproduced
with permission (Boumaza et al. 2010))
246
A. Boudjemaa and S. Gómez-Ruiz
PPy
10
8
6
4
2
20
40
60
Time (min)
Volume of evolved hydrogen (mL)
80
100
0
0
Fig. 7.20 Volume of evolved hydrogen on PPy and PPy/TiO 2 as function of illumination time at
pH 6.8 in the presence of S 2 O 3
2À
. (Reproduced with permission (Belabed et al. 2014))
Fig. 7.21 Position of the energy bands at the interface ZnFe 2 O 4 /SrTiO 3 /electrolyte. (Reproduced
with permission (Boumaza et al. 2010))
246
A. Boudjemaa and S. Gómez-Ruiz