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

Figure 3

Kinetic plots at initial dye concentration of 650 mg l⁻¹. First-order plots for (a) sample A and (b) sample C. Second order plots for (c) sample A and (d) sample C.

(a)

(b)

(c)

(d)