Sintesis Nanozarah Magnet Ferum (III) Oksidadengan Kaedah Acuan Mikroemulsi

Synthesis of magnetic nanoparticles iron oxide was conducted using the single microemulsion method. The microemulsion system consists of sucrose ester (SE1670S as the surfactant), heptanol (as co-surfactant), aqueous hydrazine hydrate (different concentration) and FeCl36H2O was prepared. After the solutions have been homogenized, cations Fe3+ were reduced to precipitation of iron nanoparticles and this growing process was controlled by microemulsion which acts as template for chemical reaction. Iron nanoparticles were calcined at high temperature in order to form the iron oxidenanomaterials. The characterization technique includes transmission electron microscopy (TEM), energy dispersive Xray analysis (EDAX) and vibrating sample magnetometer (VSM). From TEM micrograph iron oxide with different morphology was produced corresponding to difference concentration ofhydrazine hydrate. From the spectrum of ED AX, the empirical formula of iron oxide was 1.48 (almost equal to value of empiric formula of FeZ0 3). Also, the hysterisis loop obtainedfrom magnetometer (VSM) show that sample posses ferrimagnetic property with saturation magnetization 0.3 emu/g at 300K.