Adhim, Mohammad Sulthonul (2018) Sintesis Nanopartikel Fe3O4 (Magnetit) dari Batu Besi Menggunakan Metode Kopresipitasi dengan Variasi pH. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sintesis nanopartikel Fe3O4 (Magnetit) dari bahan dasar batu besi Tanah Laut, Kalimantan telah dilakukan dengan metode kopresipitasi variasi pH. Sintesis dilakukan dengan 3 variasi pH pengendapan, yaitu 9,06; 10; dan 11. Serbuk nanopartikel Fe3O4 hasil endapan dikarakterisasi menggunakan X-Ray Diffractometer (XRD) untuk mengetahui struktur kristal dan fase yang terbentuk, Particle Size Analyzer (PSA) untuk mengetahui distribusi ukuran partikelnya, Transmission Electron Microscopy (TEM) untuk mengetahui mikrostrukturnya, dan Vibrating Sample Magnetometer (VSM) untuk mengetahui sifat magnetiknya. Hasil analisis menunjukkan bahwa fase tunggal magnetit telah terbentuk untuk semua sampel variasi pH pengendapan. Sementara itu, ukuran kristal nanopartikel Fe3O4 yang dihasilkan cenderung semakin kecil seiring dengan meningkatnya pH pengendapan (10 nm s.d. 7 nm). Sedangkan nilai saturasi magnetik (Ms) dari nanopartikel Fe3O4 yang dihasilkan semakin tinggi seiring dengan meningkatnya pH pengendapan (51,6 emu/gram s.d. 77,9 emu/gram) dikarenakan nanopartikel Fe3O4 yang dihasilkan bersifat superparamagnetik parsial.
================================================================== Synthesis of Fe3O4 (Magnetite) nanoparticles from iron stone of Tanah Laut, Kalimantan has been carried out by co-precipitation method with pH variation. The synthesis was carried out with 3 variations of pH precipitation, ie 9,06; 10; and 11. The synthesized powder were characterized using X-Ray Diffractometer (XRD) to determine the formed phase as well as the crystal size Particle Size Analyzer (PSA) to know the particle size distribution, Transmission Electron Microscopy (TEM) to reveal its microstructure, and Vibrating Sample Magnetometer (VSM) to know its magnetic properties. The results showed that a single phase of magnetite has been formed for all samples from different pH. Meanwhile, the crystal size of Fe3O4 tended to decrease with increasing pH, 10 to 7 nm. The magnetic saturation value (Ms) of the samples increased from 51,6 to 77,9 emu/gram.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | batu besi, magnetit, metode kopresipitasi, nanopartikel, variasi pH |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Natural Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Mohammad Sulthonul Adhim |
| Date Deposited: | 21 Jun 2021 02:11 |
| Last Modified: | 21 Jun 2021 02:11 |
| URI: | http://repository.its.ac.id/id/eprint/54407 |
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