Abstract
In this study, magnesium ferrite was sinthesized from natural iron sand using co-precipitation method. Iron sand material was taken from the north coast of Sarmi Regency, Papua Province. The purpose of this study was to find out whether magnesium ferrite could be synthesized from iron sand directly without preliminary processes into magnetite minerals. Co-precipitation method was applied with a variant of stirring temperature of 30, 50 and 70°C. The crystal structures was characterized using an x-ray diffractometer, while the magnetic properties was characterized using a vibrating sample magnetometer and the morphology of the particle was characterized using a scanning electron microscpe. From the results of characterization, it is known that magnesium ferrite successfully synthesized from iron sand directly without preliminary processes into magnetite minerals. Magnetic properties were obtained from the sample with added of magnesium acetate tetrahedral and stirred at a temperature of 70°C. The x-ray diffracttion pattern showed figure of merit of 0.82, while the magnetic hysterisis curve shows coercivity of 200 Oe and magnetic moment about 11 emu/gr. The mineral has irregular particle sizes that range from 0.5 to 100 microns in size, due to magnetic attraction which promotes agglomeration. This researcher recommends optimization of the synthesis process so that the quality of the magnesium ferrite can be improve.
Highlights
ABSTRACT− In this study, magnesium ferrite was synthesized from natural iron sand using the coprecipitation method
The purpose of this study was to find out whether magnesium ferrite could be synthesized from iron sand directly without preliminary processes into magnetite minerals
From the results of characterization, it is known that magnesium ferrite successfully synthesized from iron sand directly without preliminary processes into magnetite minerals
Summary
Volume 17, Nomor 2, Agustus 2020 ISSN : 1829-796X (print); 2514-1713(online) https://ppjp.ulm.ac.id/journal/index.php/f/. Pasir besi yang sebelumnya telah diolah menjadi magnetit (Setiadi et al, 2016), kemudian ditambahkan dengan magnesium asetat tetrahedral, sehingga menghasilkan mineral magnesium ferit. Mengingat keunikan pasir besi Sarmi (Togibasa, Akbar, Pratama, & Bijaksana, 2019), pada penelitian ini dilakukan sintesis magnesium ferit dari pasir besi Sarmi menggunakan metode kopresipitasi dengan memberikan perbandingan ada dan tidak adanya penambahan magnesium asetat tetrahedral. Tujuan dari penelitian ini adalah untuk mengetahui apakah dapat dilakukan optimasi sintesis magnesium ferit dari pasir besi, tanpa diolah terlebih dahulu menjadi mineral magnetit. Pada proses sintesis tanpa penambahan Mg(CH3COO)2.4H2O, maka sebanyak 17,26 g pasir besi langsung dilarutkan dengan 80 ml HCl (5,1 M) kemudian diaduk hingga homogen. Sampel ini dinyatakan dengan kode non-Mg 30, non-Mg 50, non-Mg 70, yang menunjukkan tanpa penambahan magnesium asetat tetrahedral (Mg(CH3COO)2.4H2O) dengan variasi suhu pengadukan. Seluruh sampel menunjukkan kecocokan dengan mineral magnesium ferit (COD #96-900-7274), namun dengan indeks kecocokan berbeda-beda, yang dinyatakan dengan nilai figure of merit (FoM) sebagaimana diberikan pada Tabel 1
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
