Abstract
A highly ordered large pore mesoporous adsorbent MCM-41 is synthesized and characterized by XRD, BET, FTIR and SEM. Effect of contact time, initial dye concentration, adsorbent dose, pH and temperature were studied for adsorption of dye safranin on MCM-41. Experimental data were investigated for various thermodynamic models and kinetic models and corroborated that adsorption followed second order kinetic model. Langmuir model evidenced the maximum adsorption capacity as 68.8mgg−1 at 303K. Thermodynamic parameters surmised that adsorption of safranin on MCM-41 is spontaneous, exothermic and feasible.
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