Review of The Effectiveness of Plant Media Extracts in Barium Hexaferrite Magnets (BaFe12O19)

Abstract

Betel leaf is a typical Indonesian herbal plant that propagates on other tree trunks. So far, betel leaf has only been used in biomedicine and traditional medicine, whereas the chemical compounds of betel leaf can be used to absorb electromagnetic waves. In this mini-review, we review several research results to discuss the potential effectiveness of betel leaf in barium hexaferrite as an absorber of electromagnetic radiation. We compiled this mini-review based on the literature review method that is discussed extensively and in-depth regarding the chemical composition of betel leaf, modification of the development of barium hexaferrite material with betel leaf media extract, characteristics of BaFe12O19 as absorption of electromagnetic waves, and the effectiveness of media extracts in BaFe12O19 as absorption of electromagnetic waves. Based on the results of the literature review, the modification of BaFe12O19 material synthesis can include microemulsion, solid-state, coprecipitation, sol-gel, and hydrothermal synthesis. So far, hydrothermal synthesis is a synthesis method of mixing betel leaf extract media and ferrite-based magnets that have been studied before. Betel leaf in ferrite-based magnetic materials has been studied not to damage the surface morphology and characteristics of the magnetic material. The results of the assessment also show the effectiveness of adding other elements or compounds such as Ni, Al2O3, and composites in ferrite-based magnetic materials that can absorb more than 90% of electromagnetic waves in the frequency range 2-18 GHz.

High-performance microwave absorption by optimizing hydrothermal synthesis of BaFe12O19@MnO2 core–shell composites

“…The size distribution of the particles can be controlled by carefully choosing the composition of the precursor and adjusting synthesis parameters, including temperature, pressure, and reaction duration. 50 The particle sizes determined by FESEM differ slightly from those determined by PSA. At various hydrothermal temperatures of 140 °C, 160 °C, and 180 °C, the particle sizes determined by FESEM were 232.5 nm, 365 nm, and 792 nm, respectively, whereas those determined by PSA were 267.2 nm, 488.7 nm, and 768.5 nm.…”

Fe2O3 Review: Nanostructure, Synthesis Methods, and Applications

“…Hematite (α-Fe2O3) has properties that are difficult to corrode so it is suitable for applications such as gas sensors, catalysts, lithium-ion batteries, and pigments, it can also be used in the manufacture of permanent magnets. At high temperatures, the α-Fe (Edianta et al, 2021;Gandha et al, 2016;Miftahul Khoiroh et al, 2013;Rostami et al, 2021;Suhendi et al, 2021;Susilawati et al, 2022). (hematite) phase is the most stable phase compared to other phases.…”

EFFECT OF SILICON RUBBER (SIR) IN FABRICATION OF NdFeB/BaFe12O19-BASED HYBRID MAGNET

“…Starting from electrical equipment to nonelectrical equipment utilizing permanent magnets, for example, loudspeakers, water meters, KWH-meter, rice cookers, transformers, and generators. The characteristics of magnetic materials are determined by magnetic quantities such as susceptibility, remanent magnetization, saturation magnetization, and coercivity field [1,2].…”