SYNTHESIS OF BARIUM FERRITE NANORODS USING LUFFA ACUTANGULA NANOCELLULOSE TEMPLATES
Barium ferrite is a permanent magnet that is frequently used in electronic devices such as data storage media, signal absorber or radar, because of its magnetic properties. The application of barium ferrite as a data storage medium requires rod structure to take advantage of the barium ferrite aniso...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/46682 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Barium ferrite is a permanent magnet that is frequently used in electronic devices such as data storage media, signal absorber or radar, because of its magnetic properties. The application of barium ferrite as a data storage medium requires rod structure to take advantage of the barium ferrite anisotropic properties. Nanocellulose rod template can be used to direct rod-shaped barium ferrite. In this final project, barium ferrite powder with rod structure was made using the sol-gel method using nanocellulose template from Luffa Acutangula. Luffa Acutangula nanocellulose crystals were extracted from dried Luffa Acutangula fruit by acid-base method. Barium ferrite powder was synthesized from a solution of barium nitrate and iron nitrate with variations in nanocellulose template mass. The structure and properties of barium ferrite were observed using X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM) and Vibrating Sample Magnetometer (VSM).
The crystalline structure of barium ferrite has formed with a morphology of a mixture of nanorods and nanoplates at all mass variation of the template. With and without the addition of a template produced barium ferrite (BaFe12O19) containing the intermediate phase of hematite (Fe2O3). Calcination the samples at 900oC was not able to remove the template. TEM observation shows a mixture of nanorod and nanoplate morphology in all samples with the addition of the template. Sample synthesized with addition of 0.5% (w/v) produced barium ferrite with the highest saturation magnetization of 54.6 emu/g, remanence magnetization of 28.6 emu/g, coercivity field of 3.83 kOe, and squareness of 0.53.
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