Biosorption of Congo Red Dye from Aqueous Solution Using Adsorbent Prepared from Vangueria infausta Fruit Pericarp

Figure 13

(a) Pseudo-first- and (b) pseudo-second-order kinetics and (c) intraparticle diffusion model for CR dye uptake by treated VIFP (pH 2, 0.7 g VIFP, contact time of 30-210 min, and initial CR concentration of 10 mg/L).

(a)

(b)

(c)