Research Article
Indigo Carmine and 2,6-Dichlorophenolindophenol Removal Using Cetyltrimethylammonium Bromide-Modified Palm Oil Fiber: Adsorption Isotherms and Mass Transfer Kinetics
Figure 11
Effect of ionic strength on the IC and 2,6-DCPIP adsorption. Experimental conditions: [IC] = [2,6-DCPIP] = 5 × 10−5 mol·L−1; m = 0.133 g·L−1; G = 0–100 μm; t = 40 min and pH = 6.2 for IC; t = 30 min and pH = 6.7 for 2,6-DCPIP; = 150 rpm; V = 30 mL; at room temperature.