Adsorption experiments
The studies of MO adsorption were performed by batch adsorption
method. For sorption kinetics, a series of 250 mL flask containing
0.1 g of adsorbent and 50 mL of MO solution at concentration
500 mg L1 was prepared. The mixtures were continuously shaken
at 30 C and 250 rpm. Samples were taken at different time intervals
and filtered using 0.2 lm Millipore membrane filters and the
filtrates were analyzed for MO concentration. The adsorption
capacity (qt, mg g1) at any time, t was calculated using the following
equation: