Surface organic modification of Fe3O4 magnetic nanoparticles

Sheng Cui; Xiaodong Shen; Benlan Lin; Guodong Jiang; Weihua Zhang

doi:10.1007/s11595-007-4436-4

Surface organic modification of Fe₃O₄ magnetic nanoparticles

Sheng Cui, Xiaodong Shen, Benlan Lin, Guodong Jiang, Weihua Zhang

College of Materials Science and Engineering

Nanjing Tech University

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

18 Scopus citations

Abstract

The surface organic modification of Fe₃O₄ nanoparticles with silane coupling reagent KH570 was studied. The modified and unmodified nanoparticles were characterized by FT-IR, XPS and TEM. The spectra of FT-IR and XPS revealed that KH570 was coated onto the surface of Fe ₃O₄ nanoparticles to get Fe-OSi bond and an organic coating layer also was formed. Fe₃O₄ nanoparticles were spheres partly with mean size of 18.8 nm studied by TEM, which was consistent with the result 17.9 nm calculated by Scherrer's equation. KH570 was adsorbed on surface and formed chemistry bond to be steric hindrance repulsion which prevented nanoparticles from reuniting. Then glycol-based Fe₃O ₄ magnetic liquids dispersed stably was gained.

Original language	English
Pages (from-to)	436-439
Number of pages	4
Journal	Journal Wuhan University of Technology, Materials Science Edition
Volume	23
Issue number	4
DOIs	https://doi.org/10.1007/s11595-007-4436-4
State	Published - Aug 2008

Keywords

Chemical adsorb
Dispersivity
FeO nanoparticles
KH570
Surface organic modification

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10.1007/s11595-007-4436-4

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abstract = "The surface organic modification of Fe3O4 nanoparticles with silane coupling reagent KH570 was studied. The modified and unmodified nanoparticles were characterized by FT-IR, XPS and TEM. The spectra of FT-IR and XPS revealed that KH570 was coated onto the surface of Fe 3O4 nanoparticles to get Fe-OSi bond and an organic coating layer also was formed. Fe3O4 nanoparticles were spheres partly with mean size of 18.8 nm studied by TEM, which was consistent with the result 17.9 nm calculated by Scherrer's equation. KH570 was adsorbed on surface and formed chemistry bond to be steric hindrance repulsion which prevented nanoparticles from reuniting. Then glycol-based Fe3O 4 magnetic liquids dispersed stably was gained.",

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T1 - Surface organic modification of Fe3O4 magnetic nanoparticles

AU - Cui, Sheng

AU - Shen, Xiaodong

AU - Lin, Benlan

AU - Jiang, Guodong

AU - Zhang, Weihua

PY - 2008/8

Y1 - 2008/8

N2 - The surface organic modification of Fe3O4 nanoparticles with silane coupling reagent KH570 was studied. The modified and unmodified nanoparticles were characterized by FT-IR, XPS and TEM. The spectra of FT-IR and XPS revealed that KH570 was coated onto the surface of Fe 3O4 nanoparticles to get Fe-OSi bond and an organic coating layer also was formed. Fe3O4 nanoparticles were spheres partly with mean size of 18.8 nm studied by TEM, which was consistent with the result 17.9 nm calculated by Scherrer's equation. KH570 was adsorbed on surface and formed chemistry bond to be steric hindrance repulsion which prevented nanoparticles from reuniting. Then glycol-based Fe3O 4 magnetic liquids dispersed stably was gained.

AB - The surface organic modification of Fe3O4 nanoparticles with silane coupling reagent KH570 was studied. The modified and unmodified nanoparticles were characterized by FT-IR, XPS and TEM. The spectra of FT-IR and XPS revealed that KH570 was coated onto the surface of Fe 3O4 nanoparticles to get Fe-OSi bond and an organic coating layer also was formed. Fe3O4 nanoparticles were spheres partly with mean size of 18.8 nm studied by TEM, which was consistent with the result 17.9 nm calculated by Scherrer's equation. KH570 was adsorbed on surface and formed chemistry bond to be steric hindrance repulsion which prevented nanoparticles from reuniting. Then glycol-based Fe3O 4 magnetic liquids dispersed stably was gained.

KW - Chemical adsorb

KW - Dispersivity

KW - FeO nanoparticles

KW - KH570

KW - Surface organic modification

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JO - Journal Wuhan University of Technology, Materials Science Edition

JF - Journal Wuhan University of Technology, Materials Science Edition

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Surface organic modification of Fe₃O₄ magnetic nanoparticles

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Keywords

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