Munasir, R.P. Kusumawati
Fe3O4@rGO composite synthesis has been successfully made in three stages. First, synthesis of Fe3O4 particles from the iron sand with coprecipitation method. Second, the synthesis of rGO from coconut shell by ultrasonication method. Third, the synthesis of nanocomposite Fe3O4@rGO using a wet mixing method by mixing Fe3O4, rGO, and alcohol. The XRD characterization results show that the phase structure of the Fe3O4@rGO composite is successfully formed. The presence of FTIR supports this results in the form of wave absorption patterns identified as having Fe-O, C = O and C = C bonds which state that Fe3O4 surface modification has been successfully carried out using rGO. Also, the results of the VSM characterization showed that the saturation magnetization in the sample was 23.5 emu/g. This value is high, and the increasing rGO in the composites, the magnetic components become relatively lower which results in full magnetization values decreasing, and the results of TEM characterization show that Fe3O4@rGO nanocomposites have successfully formed core-shell formations. © Published under licence by IOP Publishing Ltd.
Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Kampus Ketintang, Jalan Ketintang, Surabaya, 60231, Indonesia; Research Center of Advanced Materials, Universitas Negeri Surabaya, Kampus Ketintang, Jalan Ketintang, Surabaya, 60231, Indonesia
