Studies of Dye Sensitisation Kinetics and Sorption Isotherms of Direct Red 23 on Titania

Figure 2

Sorption kinetics of (a) 330 mg l⁻¹ of Direct Red 23 onto four different samples of TiO₂; (b) varying concentrations of Direct Red 23 onto TiO₂ sample A; (c) varying concentrations of Direct Red 23 onto TiO₂ sample C. Error bars are omitted from (a) for clarity.

(a)

(b)

(c)