Sonochemical synthesis of monodispersed magnetite nanoparticles by using an ethanol-water mixed solvent

Feng Dang; Naoya Enomoto; Junichi Hojo; Keiji Enpuku

doi:10.1016/j.ultsonch.2008.11.003

Sonochemical synthesis of monodispersed magnetite nanoparticles by using an ethanol-water mixed solvent

Feng Dang, Naoya Enomoto, Junichi Hojo, Keiji Enpuku

Superconductive Systems Engineering Laboratory

Research output: Contribution to journal › Article › peer-review

140 Citations (Scopus)

Abstract

The magnetite nanoparticles were synthesized in an ethanol-water solution under ultrasonic irradiation from a Fe(OH)₂ precipitate. XRD, TEM, TG, IR, VSM and UV/vis absorption spectrum were used to characterize the magnetite nanoparticles. It was found that the formation of magnetite was accelerated in ethanol-water solution in the presence of ultrasonic irradiation, whereas, it was limited in ethanol-water solution under mechanical stirring. The monodispersibility of magnetite particles was improved significantly through the sonochemical synthesis in ethanol-water solution. The magnetic properties were improved for the samples synthesized under ultrasonic irradiation. This would be attributed to high Fe²⁺ concentration in the magnetite cubic structure.

Original language	English
Pages (from-to)	649-654
Number of pages	6
Journal	Ultrasonics Sonochemistry
Volume	16
Issue number	5
DOIs	https://doi.org/10.1016/j.ultsonch.2008.11.003
Publication status	Published - Jun 2009

All Science Journal Classification (ASJC) codes

Chemical Engineering (miscellaneous)
Environmental Chemistry
Radiology Nuclear Medicine and imaging
Acoustics and Ultrasonics
Organic Chemistry
Inorganic Chemistry

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10.1016/j.ultsonch.2008.11.003

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abstract = "The magnetite nanoparticles were synthesized in an ethanol-water solution under ultrasonic irradiation from a Fe(OH)2 precipitate. XRD, TEM, TG, IR, VSM and UV/vis absorption spectrum were used to characterize the magnetite nanoparticles. It was found that the formation of magnetite was accelerated in ethanol-water solution in the presence of ultrasonic irradiation, whereas, it was limited in ethanol-water solution under mechanical stirring. The monodispersibility of magnetite particles was improved significantly through the sonochemical synthesis in ethanol-water solution. The magnetic properties were improved for the samples synthesized under ultrasonic irradiation. This would be attributed to high Fe2+ concentration in the magnetite cubic structure.",

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AU - Dang, Feng

AU - Enomoto, Naoya

AU - Hojo, Junichi

AU - Enpuku, Keiji

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Y1 - 2009/6

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AB - The magnetite nanoparticles were synthesized in an ethanol-water solution under ultrasonic irradiation from a Fe(OH)2 precipitate. XRD, TEM, TG, IR, VSM and UV/vis absorption spectrum were used to characterize the magnetite nanoparticles. It was found that the formation of magnetite was accelerated in ethanol-water solution in the presence of ultrasonic irradiation, whereas, it was limited in ethanol-water solution under mechanical stirring. The monodispersibility of magnetite particles was improved significantly through the sonochemical synthesis in ethanol-water solution. The magnetic properties were improved for the samples synthesized under ultrasonic irradiation. This would be attributed to high Fe2+ concentration in the magnetite cubic structure.

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Sonochemical synthesis of monodispersed magnetite nanoparticles by using an ethanol-water mixed solvent

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