The effect of temperature on synthesis of MgFe2O4 based on natural iron sand by Co-precipitation method as adsorbent Pb ion

Penulis: Eko Arief Setiadi M.Sc.,Prof. Drs. Perdamean Sebayang M.Sc.,Prof. Dr. Masno Ginting M.Sc., Candra Kurniawan S.Si.,M. Yunus, N. Nababan, S. Simbolon, S. Humaidi
Magnetic materials of magnesium ferrite (MgFe 2 O 4 ) based on natural iron sand has been successfully prepared as an adsorbent of Pb ions. This material was synthesized by coprecipitation method with natural iron and Mg(CH 3 COO) 2 .4H 2 O as precursor powders which were mixed with 2.0 M NH 4 OH at a synthesis temperature of 50, 70 and 90 °C. The material characterizations were carried out using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Vibrating Sample Magnetometer (VSM). The XRD pattern showed that MgFe 2 O 4 has single phase and its crystallite size increased and the powder density decreased as the temperature increased. The optimum temperature for the synthesis of MgFe 2 O 4 was found at 50 °C, when the saturation magnetization and coercivity were at the highest values of 51.73 emu/g and 308 Oe, espectively. The result also showed that MgFe 2 O 4 as an adsorbent of Pb ions has adsorption capacity of 143.07mg/g and removal efficiency of 97.3%.

IOP Conf. Series: Journal of Physics: Conf. Series 985 (2018) 012046

ISSN / ISBN / IBSN : 1742-6596

DOI: 10.1088/1742-6596/985/1/012046

No. Arsip : LIPI-20180712
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