SYNTHESIS OF MAGNETIC NANOPARTICLE OF CORE-SHELL Fe/Fe OXIDE USING CHEMICAL REDUCTION METHOD
| Main Authors: | Sulungbudi, Grace Tj.; Pusat Teknologi Bahan Industri Nuklir (PTBIN) - BATAN Kawasan Puspiptek, Serpong 15314, Tangerang Selatan, ., Mujamilah; Pusat Teknologi Bahan Industri Nuklir (PTBIN) - BATAN Kawasan Puspiptek, Serpong 15314, Tangerang Selatan, Handayani, Ari; Pusat Teknologi Bahan Industri Nuklir (PTBIN) - BATAN Kawasan Puspiptek, Serpong 15314, Tangerang Selatan |
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| Other Authors: | BATAN |
| Format: | Article application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
BATAN
, 2013
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| Online Access: |
http://jurnal.batan.go.id/index.php/jsmi/article/view/885 |
Daftar Isi:
- This paper describes the synthesis ofmagnetic nanoparticles having core-shell structure in which Fe phase as a core were surrounded by Fe oxide phase as a shell. This structure is expected to give amagnetic nanoparticle having high magnetization value. Fe/Fe oxide core/shell nanoparticles were synthesis through reduction process of FeCl3 by NaBH4 reductor to produce zero valent Fe followed by surface modification using TMNO reactant to form Fe oxide phase layer around Fe. Morphology, phase composition and magnetic properties were optimized by varying mole ratio of FeCl3 and NaBH4 between 1 and 3. TEM observation showed the formation of core/shell structure with core sizes < 40 nm and shell ~ 5 nm especially for 1 : 2 compositions. However, phase analysis result showed, besides the Fe and Fe oxides phase, impurities phase of the Fe-B alloy and NaBH4 derivative phase are also present. This condition affects the magnetic properties formation and result in magnetization maximum value of only 72 emu/gram for the 1 : 2 composition.Keywords: Magnetic nanoparticles, Core-shell structure, Fe/Fe oxide, Phase, Magnetic properties.