Abstract
The synthesis of M-hexaferrite with metal doping Co (BaFe12-3xCoxO19 ) based on natural iron sand at Ketapang beach in Pringgabaya Subdistrict, East Lombok using the coprecipitation method has been successful. The basic ingredients used in this study were natural iron sand and BariumCarbonate (BaCO3) powder, while the doping material used was Cobalt (II) Chloride Hexahydrate (CoCl2.6H2O) powder with a variety of mole fraction (X = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0). The solvent uses 37% hydrochloric acid (HCl), 25% NH4OH solution, and distilled water. The sample formed was then calcined at 200 0C, 400 0C, 600 0C, 800 0C and 1000 0C. The resulting sample shows that there is an effect of Co doping and calcination temperature in the formation of barium M-hexaferrite. The higher the mole fraction of Co doping ions and the calcination temperature, the darker the color of the powder produced.
Highlights
The use of electromagnetic waves has been widespread in various fields such as electronics, telecommunications, and information
This study aims to determine the characteristics of Co metal dopant administration and the temperature of barium M-hexaferrite (BaFe12-xCoxO19) on phase formation
The synthesis of BaFe12-xCoxO19 made from natural iron sand was carried out with variations in the mole fraction of Co doping ion (x= 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0) and variations in calcination temperature (T= 200 0C, 400 0C, 600 0C, 800 0C and 1000 0C)
Summary
The use of electromagnetic waves has been widespread in various fields such as electronics, telecommunications, and information. This results in increased pollution of electromagnetic waves in the form of microwave radiation which can interfere with the environment. Electromagnetic wave radiation that exceeds the limit can disrupt the environment, especially human health (Susilawati et al‚ 2015). In response to this problem, scientists have developed absorption technology for microwave radiation. Certain types of materials can be used for this technology. One of the materials that can be used as a microwave absorbent material is Barium M-Hexaferrite (Doyan et al, 2015)
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