Comparative and Equilibrium Studies on Anionic and Cationic Dyes Removal by Nano-Alumina-Doped Catechol Formaldehyde Composite

Figure 7

Pseudo-first-order kinetics of (a) CR and (c) SF; pseudo-second-order kinetics of (b) CR and (d) SF.

(a)

(b)

(c)

(d)