Research Article
Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)
Figure 5
Effect of surfactants on MB adsorption ( = 250 mg L−1, concentration of adsorbent = 1 g L−1, pH = 6.85, temp. = 25°C, and contact time = 180 min).