چكيده به لاتين
In this study, batch operation was applied for the removal of diclofenac sodium by Ni0.5Zn0.5Fe2O4 magnetic nanoparticles from aqueous solution. Ni0.5Zn0.5Fe2O4 magnetic nanoparticles were prepared by a simple one-pot method and characterized by EDS, FTIR, SEM, VSM and BET analyses. After that, the influence of different adsorption parameters, such as contact time, adsorbent dosage, initial diclofenac concentration, initial pH value of solution and temperature have been investigated. The Langmuir, Freundlich and Temkin adsorption models were used to describe the experiment data. The pseudo-first-order, pseudo-second-order kinetic models were applied to describe the kinetic data. The results showed that, the equilibrium data for adsorption of diclofenac were fitted well by Langmuir isotherm and the maximum adsorption capacity was 52.91 mg/g at 25 °C. Also, the kinetic data were described better with pseudo-first-order kinetic model. Due to easy synthesis of Ni0.5Zn0.5Fe2O4 magnetic nanoparticles, its fast adsorption, magnetic properties and adsorption capacity, it can be employed for efficient removal of diclofenac sodium.
