The process of making BaM (BaFe12O19) samples based on natural iron sand doped with metal (Co-Cu-Zn) using the coprecipitation method

Abstract

BaCO3 with natural iron sand is the basic material for making samples of Barium M-Hexaferrite (BaM) which is doped to make the utilization of BaM more effective by adding metal ions that have almost the same size as cobalt (Co), copper (Cu), and Zinc (Zn) and using the coprecipitation method. The process of making Barium M-hexaferrite is carried out in the advanced and basic chemistry laboratory, FMIPA University of Mataram. In this study, variations in concentration and temperature variations during the calcination process were used, namely (x = 0.0; 0.4; 0.8; 1.0) (T = 200; 600; and 1000 °C). These variations greatly affect the sample, where the greater the concentration and temperature of calcination, the color produced in the sample will be darker and this is by the purpose of the calcination process carried out, namely the greater the temperature at the time of calcination, the more water content in the sample will be. reduced because the solvent in the sample evaporation occurs. In addition to these materials, the solvent used also plays an important role in the sample-making process, namely using HCl37% to dissolve, NH4OH 65% so that the deposition process is faster and aquades as a neutralizer.

Analysis of Ca2+ and Fe2+ Ions in Ngade Water and Tolire Lake Water Ternate, North Maluku

“…The crystals were put into a 100 mL volumetric flask, distilled water was added to the mark and homogenized. The solvent used is water solvent (aquades) because it is easy to obtain and this solvent is easily soluble in ionic compounds (Fatimah et al, 2022), (Setyawati et al, 2020) and (Sonia et al, 2022). Next, the stock solution was taken and then made some standard solutions such as 10, 20 and 30 ppm and put them in a 100 mL volumetric flask.…”

Synthesis of Barium M-Hexaferrite Using Co-precipitation Method with Zn Doping Based on Natural Iron Sand at Tebing Beach, North Lombok as Microwave Absorbent Material

“…Iron sand has the main components of iron oxide (Fe2O3) and silica (SiO2) (Rahmi et al, 2019) and contains magnetic minerals such as magnetite (Fe3O4) and hematite (a-Fe2O3) (Fatari et al, 2022). Applicatively, natural iron sand can be used as Radar Absorbing Material (RAM) (Fatimah et al, 2022). RAM is a microwave absorbing material.…”

Analysis Magnetic Mineral Content of Natural Iron Sand in Beach Island Lombok as Basic Materials of Micro Wave Absorbers

“…Iron sand has ferromagnetic properties with magnetic minerals contained such as magnetite, hematite, and maghemite (Susilawati et al, 2017). In addition, there are also non-magnetic in iron sand such as silicon oxide which affects its magnetic nature (Fatimah et al, 2022;Susilawati et al, 2022). Iron sand which has a high magnetite content (Fe3O4) will provide strong magnetic properties, while sand that has many minerals such as K, C, Na, Mg, Si, and Ca decreases the magnetic nature contained in the sand (Khaerunnisa et al, 2018;Sahlam et al, 2018).…”