Table 1 Size (D) and surface area (S) of the oxides with rates of iodide ion-photooxidation*

TiO₂ (anatase)

9

165

216

361

TiO₂ P25 (anatase:rutile::81:19)

23

68

39

257

TiO₂ Hombikat (anatase:rutile::69:31)

18

87

63

232

TiO₂ (rutile)

12

123

2.5

24

BaTiO₃

41

24

5.4

27

ZnO (wurtzite)

32

33

6.9

93

SnO₂

27

31

2.4

21

WO₃

23

39

1.6

61

CuO

28

33

0.4

23

Fe₂O₃

39

32

1.7

24

Fe₃O₄

32

36

0.8

21

ZrO₂

25

42

1.1

20

Al₂O₃ (γ:δ::65:35)

11

148

8.9

32

SiO₂

15

160 ± 20

12

44

SiO₂ (porous)

10

640 ± 50

6.5

27