Research Article
Pineapple Bark Performance in Dyes Adsorption: Optimization by the Central Composite Design
Figure 5
Effect of contact time on (a) adsorption efficiency and (b) adsorption capacity at different concentrations. m = 2.g·L−1; [DM] = 20–50 mg·L−1; T = 20°C, pH = 6; Vag = 400 rpm; t = 60 min.
| (a) |
| (b) |