SINTESIS DAN KARAKTERISASI KOMPOSIT Fe 3 O 4 KARBON AKTIF DARI TEMPURUNG KELAPA DENGAN METODE HIDROTERMAL UNTUK ADSORPSI ANILIN

Abstract

Synthesis and characterization of activated carbon modified Fe3O4 has been carried out by the hydrothermal method. This composite is made from coconut shell activated carbon and a mixture of FeCl3.6H2O with FeSO4.7H2O. The work process starts from the activated carbon activation stage using HNO3. Then proceed with the synthesis step in a hydrothermal reactor that contains a mixture of activated carbon, FeCl3.6H2O, FeSO4.7H2O, distilled water, and a little ethanol. The reactor is heated at 250 0C for 5 hours. At the aniline adsorption tested, it used several parameters such as pH, consentration, contact time, and weight. The results of the characterization with FTIR showed the interaction of Fe-O bonds on the wave number band 521.46 cm-1. The results of SEM-EDX show a spherical surface morphology with a rough surface, XRD provides information that this composite micro particle has a simple cubic structure. This composite has succeeded in reducing the level of aniline in a dilute solution. The trial results showed the optimum adsorption conditions at pH 5, 250 ppm concentration, 75 minutes contact time, and 0.5 gram composite weight.