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      Efek Lama Sonikasi dan Coating Terhadap Ukuran Partikel dan Saturasi Magnetisasi Magnetit Nanopartikel Fe3O4

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      Date
      2021
      Author
      Putra, Bayu Pranoto Dwi
      Dahlan, Kiagus
      Wahyudi, Setyanto Tri
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      Abstract
      Magnetit adalah mineral ferrimagnetik yang pada umumnya dapat disintesis menggunakan metode kopresipitasi. Kegunaannya dalam dunia medis dan industri menjadikan magnetit sebagai pusat perhatian para peneliti. Oleh karena itu penting adanya informasi mengenai metode paling efektif dalam memperoleh magnetit dengan karakteristik tersendiri. Pada penelitian ini dilakukan penelaahan terhadap 26 sumber pustaka. Berdasarkan data analisis XRD yang telah dikumpulkan, magnetit hasil ultrasonikasi cenderung memiliki ukuran lebih kecil daripada yang disintesis tanpa ultrasonikasi. Ukuran terkecil partikel dibatasi oleh kemampuan material tersebut dalam memerangkap gelombang ultasonik sebelum pecah menjadi lebih kecil. Selain itu penambahan konsentrasi coating terbukti dapat memperkecil ukuran partikel, hal ini disebabkan penambahan coating menjadikan material yang disintesis menjadi lebih stabil sehingga pengaruh ultrasonikasi dapat berlangsung lebih efektif. Namun di sisi lain, penambahan coating justru mengurangi nilai saturasi magnetisasi.
       
      Magnetite is a ferrimagnetic mineral that can generally be synthesized using the coprecipitation method. Its medical and industrial uses have made magnetite the center of attention of researchers. Therefore it is important to have information about the most effective method of obtaining magnetite with its characteristics. In this study, 26 literature sources were reviewed. Based on the XRD analysis data that has been collected, the ultrasonicated magnetite tends to be smaller in size than those synthesized without ultrasonication. The smallest particle size is limited by the ability of the material to trap ultrasonic waves before breaking into smaller ones. Besides, the addition of coating concentration is proven to reduce the particle size, this is due to the addition of a coating to make the material being synthesized more stable so that the effect of ultrasonication can take place more effectively. But on the other hand, the addition of coating reduces the magnetization saturation value.
       
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      http://repository.ipb.ac.id/handle/123456789/109727
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      • UT - Physics [1236]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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