Synthesis Of Fe3O4 Nanoparticles Of Iron Sand Coprecipitation Method With Polyethylene Glycol 6000

Abstract

This study aimed to obtain a particle size-based nano Fe₃O₄ iron sand, determine the effect of Polyethylene Glycol (PEG) -6000 to be produced from iron sand in synthetic by using coprecipitation method and the nature of magnetization. Synthetic done by mixing natural sand with HCl as solvent and NH₄OH as a precipitant, as templates are added PEG-6000 .. Then, characterized by using X-Ray Diffractometer (XRD). Vibrating Sample Magnetometer (VSM) and Fourier Transform Infra Red (FTIR).

From the test results (XRD) shows the crystal size Preparation Fe3O4 nanoparticles with PEG 6000 (1: 3), (1: 4), (1: 5) in a sequence that is 14.90 nm, 22:16 nm, 33.11 nm while without PEG 6000 29.08 nm ,

Vibrating Sample Magnetometer measurement results (VSM) shows that the value of Ms saturation field for without PEG-6000 Fe3O4, Fe₃O₄ with PEG-6000 (1: 3), (1: 4), (1: 5) respectively 27.9 emu / g, 47.4 emu / g, 35.3 emu / g, 51.7 emu / g and field coercivity (Hc), each for 0,013 Tesla, 0.022 Tesla, Tesla 0.14, 0.009 Tesla.

FTIR results showed that there was a shift peaks indicating increased number of PEG. From each sample came the peak of Fe-O owned by Fe₃O₄ where the wavelength of Fe-O at sample PEG has a lower value than the wavelength Fe₃O₄ caused the PEG

Key words: Nanoparticles Fe₃O₄, PEG 600, particle size, magnetic properties