Salt effects on the physical properties of magnetite nanoparticles synthesized at different NaCl concentrations

Ja Young Park; Daksha Patel; Eun Sook Choi; Myung Ju Baek; Yongmin Chang; Tae Jeong Kim; Gang Ho Lee

doi:10.1016/j.colsurfa.2010.06.014

Salt effects on the physical properties of magnetite nanoparticles synthesized at different NaCl concentrations

Ja Young Park, Daksha Patel, Eun Sook Choi, Myung Ju Baek, Yongmin Chang, Tae Jeong Kim, Gang Ho Lee

Kyungpook National University

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

19 Scopus citations

Abstract

Magnetite nanoparticles were synthesized at a wide range of NaCl solutions (c=0.01-3.0M). The particle diameter (d) was reduced from 7.7 to 6.8nm and the colloidal stability dropped with increasing c. The salt effect on the d was successfully elucidated with an aid of a homogeneous nucleation model. The saturation magnetization (M_s) reduction and the lattice contraction (Δa) from -0.015 to -0.038Å with increasing c were observed due to the decrease of the d. From the Δa, the surface tension (γ) enhancement from 0.192 to 0.614N/m with increasing c was estimated.

Original language	English
Pages (from-to)	41-46
Number of pages	6
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	367
Issue number	1-3
DOIs	https://doi.org/10.1016/j.colsurfa.2010.06.014
State	Published - Sep 2010

Keywords

FeO
Homogeneous nucleation model
Nanoparticle
Physical properties
Salt effect

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10.1016/j.colsurfa.2010.06.014

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title = "Salt effects on the physical properties of magnetite nanoparticles synthesized at different NaCl concentrations",

abstract = "Magnetite nanoparticles were synthesized at a wide range of NaCl solutions (c=0.01-3.0M). The particle diameter (d) was reduced from 7.7 to 6.8nm and the colloidal stability dropped with increasing c. The salt effect on the d was successfully elucidated with an aid of a homogeneous nucleation model. The saturation magnetization (Ms) reduction and the lattice contraction (Δa) from -0.015 to -0.038{\AA} with increasing c were observed due to the decrease of the d. From the Δa, the surface tension (γ) enhancement from 0.192 to 0.614N/m with increasing c was estimated.",

keywords = "FeO, Homogeneous nucleation model, Nanoparticle, Physical properties, Salt effect",

author = "Park, {Ja Young} and Daksha Patel and Choi, {Eun Sook} and Baek, {Myung Ju} and Yongmin Chang and Kim, {Tae Jeong} and Lee, {Gang Ho}",

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T1 - Salt effects on the physical properties of magnetite nanoparticles synthesized at different NaCl concentrations

AU - Park, Ja Young

AU - Patel, Daksha

AU - Choi, Eun Sook

AU - Baek, Myung Ju

AU - Chang, Yongmin

AU - Kim, Tae Jeong

AU - Lee, Gang Ho

PY - 2010/9

Y1 - 2010/9

N2 - Magnetite nanoparticles were synthesized at a wide range of NaCl solutions (c=0.01-3.0M). The particle diameter (d) was reduced from 7.7 to 6.8nm and the colloidal stability dropped with increasing c. The salt effect on the d was successfully elucidated with an aid of a homogeneous nucleation model. The saturation magnetization (Ms) reduction and the lattice contraction (Δa) from -0.015 to -0.038Å with increasing c were observed due to the decrease of the d. From the Δa, the surface tension (γ) enhancement from 0.192 to 0.614N/m with increasing c was estimated.

AB - Magnetite nanoparticles were synthesized at a wide range of NaCl solutions (c=0.01-3.0M). The particle diameter (d) was reduced from 7.7 to 6.8nm and the colloidal stability dropped with increasing c. The salt effect on the d was successfully elucidated with an aid of a homogeneous nucleation model. The saturation magnetization (Ms) reduction and the lattice contraction (Δa) from -0.015 to -0.038Å with increasing c were observed due to the decrease of the d. From the Δa, the surface tension (γ) enhancement from 0.192 to 0.614N/m with increasing c was estimated.

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KW - Homogeneous nucleation model

KW - Nanoparticle

KW - Physical properties

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Salt effects on the physical properties of magnetite nanoparticles synthesized at different NaCl concentrations

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