Nonaqueous synthesis of magnetite nanoparticles via oxidation of tetrachloroferrate anions by pyridine-N-oxide

Kamura, Atsuo; Idota, Naokazu; Sugahara, Yoshiyuki

doi:10.1016/j.solidstatesciences.2018.10.018

Cited by 6 publications

(1 citation statement)

References 49 publications

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“…Mostly, those parameters strongly depend on the synthesis route of nanoparticles. For instance, Sugahara and co-workers have | Vietnam Academy of Science and Technology synthesised MNPs through oxidation of tetrachloroferrate anions by pyridine-N-oxide, having a broad particle size distribution from 10 to 30 nm [11]. A solvothermal polyol approach was also reported to prepare MNPs.…”

Section: Introductionmentioning

confidence: 99%

Highly monodisperse and colloidal stable of L-serine capped magnetite nanoparticles synthesized via sonochemistry assisted co-precipitation method

Saputra

Wibowo

Lestari

et al. 2020

Adv. Nat. Sci: Nanosci. Nanotechnol.

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Highly monodispersed magnetite nanoparticles (MNPs) were successfully prepared by means of a sonochemistry-assisted co-precipitation method in the presence of L-serine (L-ser). In order to understand the effect of the L-serine on the development of nanoparticles, various concentrations (0, 1, 3 and 5 mmol) of L-ser were employed. In this study, a conventional co-precipitation method was also performed to prepare MNPs (denoted as MNP-1) as a comparison. The MNPs prepared via sonochemistry-assisted co-precipitation method (MNP-2) have better crystallinity and morphological uniformity than MNP-1, which were observed by XRD and TEM measurements, respectively. Synergistically, the introduction of L-ser as a capping agent during the ultrasound irradiation significantly improved the particle size monodispersity and colloidal stability of MNP-2. In addition, the magnetic sensitivity of MNP-2 (Ms = 57.12 emu g−1) was not altered significantly even with the addition of 5 mmol of L-ser (Ms = 48.34 emu g−1). This investigation shows that the L-ser acts not only as a capping agent to improve the colloidal stability of nanoparticles but also as a particle size controlling agent.

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Section: Introductionmentioning

confidence: 99%