Sonochemical technology is a technology that involves ultrasonic waves in chemical reactions.In this study, humic acid isolated from peat soil has been cashel tail bag successfully modified with magnetite (HA-Fe3O4) using sonochemical technology.Characterization of the physical and chemical properties of HA-Fe3O4 was carried out using FTIR, XRD, SEM and VSM.HA-Fe3O4 was used for recovery of gold from simulated gold waste (HAuCl4).
FTIR characterization showed that the interaction between HA and Fe3O4 was through hydrogen bonds.The crystal size of p1006-1420eg HA-Fe3O4 using the Debye-Scherrer equation based on the XRD diffractogram was 12.4 nm.The saturation magnetization value of HA-Fe3O4 obtained was 52.
80 emu/g.Adsorption studies at various pH showed that HA-Fe3O4 has been successful in recovering of gold from simulated gold waste.The % recovery of gold was 99%.Gold recovery occurs through the adsorption process followed by reduction of Au (III) to Au(0).