Synthesis and adsorption properties of mesoporous material for the removal of dye safranin: Kinetics, equilibrium, and thermodynamics

Synthesis and adsorption properties of mesoporous material for the removal of dye safranin: Kinetics, equilibrium, and thermodynamics

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 temperaturewere studied for adsorption of dye safranin on MCM-41. Experimental data were investigated for variousthermodynamic models and kinetic models and corroborated that adsorption followed second orderkinetic model. Langmuir model evidenced the maximum adsorption capacity as 68.8 mg g 1 at 303 K. Thermodynamic parameters surmised that adsorption of safranin on MCM-41 is spontaneous,exothermic and feasible.

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 temperaturewere studied for adsorption of dye safranin on MCM-41. Experimental data were investigated for variousthermodynamic models and kinetic models and corroborated that adsorption followed second orderkinetic model. Langmuir model evidenced the maximum adsorption capacity as 68.8 mg g 1 at 303 K. Thermodynamic parameters surmised that adsorption of safranin on MCM-41 is spontaneous,exothermic and feasible.