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Journals / Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2017 / Cilt: 19 - Sayı: 2

Synthesis and characterization of SiO2 coated cubic Fe3O4 nanoparticles

SiO2 kaplı kübik Fe3O4 nanoparçacıkların sentezlenmesi ve karakterizasyonu

Mustafa COŞKUN
Senem ÇİTOĞLU
Pages
227–236
Publication Date
2017-10-02
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Magneto-thermal properties were determined by measuring SAR values.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this work, Cubic Fe3O4 nanoparticles were prepared by chemical methods.
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Key Findings & Data:Synthesized Fe3O4 nanoparticles were coated with SiO2.
💡
Conclusion & Impact:Magneto-thermal properties were determined by measuring SAR values.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Magnetic nanoparticles · magnetic nanoparticles hyperthermia · Fe3O4

Abstract

In this work, Cubic Fe3O4 nanoparticles were prepared by chemical methods. The crystal structures and surface morphologies had confirmed by XRD spectroscopy and TEM studies. Synthesized Fe3O4 nanoparticles were coated with SiO2. The effects of SiO2 coating on the structural and magnetic properties of the synthesized nanoparticles were investigated. Magnetic hysteresis properties of the nanoparticles studied using VSM techniques. Histeresis mechanisms (including relevant parameters such as the amplitude of alternating magnetic field, particle size distribution, anisotropy constant, saturation magnetization, surface treatment, the concentrations of particles) responsible for heat dissipation in the synthesized systems of nanoparticles. Magneto-thermal properties were determined by measuring SAR values.

Özet

Bu çalışmada, Fe3O4 nanoparçacıkları, kimyasal yöntemle kübik şekilde sentezlenmiştir. Nanoparçacıkların kristal yapıları XRD spektroskopisi ve yüzey morfolojileri ise Geçirimli Elektron Mikroskobu (TEM) çalışmalarıyla belirlenmiştir. Sentezlenen Fe3O4 nanoparçacıkları SiO2 ile kaplanarak, kaplamanın bu nanoparçacıkların yapısal ve magnetik özellikleri üzerine olan etkileri araştırılmıştır. Sentezlenen magnetik nanoparçacıkların ısı soğurumundan sorumlu olan ve RF magnetik alan şiddeti, parçacık boyut dağılımı, anizotropi katsayısı, doyum magnetizasyonu, yüzey işlemi, parçacık yoğunluğu gibi parametreleri içeren histeresis mekanizmalarının incelenmesi için magnetizasyon ölçümleri yapılmıştır. Örneklerin magneto-ısıl özellikleri Öz güç-soğurma hızı (SAR) değerleri ölçülerek belirlenmiştir.

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Cite This Article

COŞKUN, M., ÇİTOĞLU, S. (2017). Synthesis and characterization of SiO2 coated cubic Fe3O4 nanoparticles. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 19 - Sayı: 2, 227–236. https://ajindex.com/articles/251163

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