Research Article
Studies of Dye Sensitisation Kinetics and Sorption Isotherms of Direct Red 23 on Titania
Table 1
Selected characteristics of titania samples.
| | Titania samples | | A | B | C | D |
| | Surface area (m2 g−1)* | 49.8
(1.5) | 11.1
(0.7) | 14.9
(0.3) | 11.1
(0.4) | | Particle size† (nm) | 20–50 | 200–300 | 200–300 | 300–500 | | Zero point charge (ZPC) | 4.50
(0.00) | 6.50
(0.15) | 6.40
(0.15) | Not
measured | | X-ray diffraction data | Anatase
(80%)
+ Rutile
(20%) | Anatase | Rutile | Rutile |
|
|
* Standard deviation shown in parentheses.
† Average particle size measured by scanning electron microscopy.
|
