Fabricated CoMgFe_2O_4 for Adsorption of Malachite Green with Column Method

摘要

Cobalt Magnesium Ferrites (CoMgFe_2O_4) were synthesized by a sol gel method. Cobalt nitrate, ferri nitrate, polyvinyl alcohol, and citric acid mixed and stirred at 80°C for 24h, then calcined at 500°C for 2 h. The resulting product is characterized by SEM-EDX. The results revealed that cobalt percentage on the surface (≈6,59%) and with respect to x= 0.1 of Co_(0.1)Mg_(0.9)Fe_2O_4. This study aims to determine the ability of CoMgFe_2O_4 to adsorb Malachite Green (MG) with a column system. The theoretical concentration in efffluent evaluated with Thomas model. The test results show that the Ct predictive value accordance with the experimental results. Desorption of CoMgFe_2O_4 with 0.01M NaOH solution show that with 3 times elution, all MG which are bound to the adsorbent can be released.