Sintesis dan Kararkterisasi Modifikasi Mikropartikel Magnetit (Fe3O4) Dalam Pemanfaatan Karat dengan Ekstrak Daun Ilalang (Imperata Cylindrica L)

Synthesis and Characterization of Modified Magnetite Microparticles (Fe3O4) in Rust Utilization with Leaf Extract of Grass (Imperata cylindrica L)

Abstract

The synthesis of magnetite (Fe₃O₄) microparticles has been successfully carried out using rust and leaf extract of grass (Imperata cylindrica L). The purpose of this research is the synthesis and characterization of Fe₃O₄ microparticles using the Green Synthesis method. The UV-Vis results showed that the absorption peak was at a wavelength of 273 nm with an absorbance value of 0.75. FTIR analysis shows the shift of the peak at wave number 3356 cm^-1 to 3290 cm^-1 and the appearance of a new peak at wave number 500 cm^-1 which is characteristic of the Fe-O-Fe functional group and indicates the formation of Fe₃O₄ microparticles. XRD results showed six specific peaks, which were crystallinity of Fe₃O₄ microparticles at position 2 theta 30.40 °, 35.70 °, 43.30 °, 53.80 °, 57.40 °, and 63.00 °. PSA analysis showed that the mean particle size was > 100 nm, and the PZC results showed a zeta potential of 20 mV. SEM results showed the morphology of Fe₃O₄ microparticles with 1000x magnification, and EDS analysis results showed Fe and O's elemental composition.