One-pot synthesis of monodisperse CoFe2O4@Ag core-shell nanoparticles and their characterization

被引：16

作者：

Hara, Shuta ^{[1
]}

Aisu, Jumpei ^{[1
]}

Kato, Masahiro ^{[1
]}

Aono, Takashige ^{[2
]}

Sugawa, Kosuke ^{[1
]}

Takase, Kouichi ^{[2
]}

Otsuki, Joe ^{[1
]}

Shimizu, Shigeru ^{[1
]}

Ikake, Hiroki ^{[1
]}

机构：

[1] Nihon Univ, Coll Sci & Technol, Dept Mat & Appl Chem, Chiyoda Ku, 1-8-14 Kandasurugadai, Tokyo 1018308, Japan

[2] Nihon Univ, Coll Sci & Technol, Dept Phys, Chiyoda Ku, 1-8-14 Kandasurugadai, Tokyo 1018308, Japan

来源：

NANOSCALE RESEARCH LETTERS | 2018年 / 13卷

基金：

日本学术振兴会;

关键词：

Core-shell nanoparticles; Cobalt ferrite; Supermagnetism; Surface plasmon resonance; IRON-OXIDE NANOPARTICLES; COBALT-FERRITE NANOPARTICLES; ONE-STEP SYNTHESIS; MAGNETIC-PROPERTIES; BIOMEDICAL APPLICATIONS; PLASMONIC PROPERTIES; FE; GOLD; AU; FABRICATION;

D O I：

10.1186/s11671-018-2544-z

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In recent years, monodispersed magnetic nanoparticles with a core/shell structure are expected for their wide applications including magnetic fluid, recoverable catalysts, and biological analysis. However, their synthesis method needs numerous processes such as solvent substitution, exchange of protective agents, and centrifugation. A simple and rapid method for the synthesis of monodispersed core-shell nanoparticles makes it possible to accelerate their further applications. This paper describes a simple and rapid one-pot synthesis of core (CoFe2O4)-shell (Ag) nanoparticles with high monodispersity. The synthesized nanoparticles showed plasmonic light absorption owing to the Ag shell. Moreover, the magnetic property of the nanoparticles had a soft magnetic behavior at room temperature and a hard magnetic behavior at 5 K. In addition, the nanoparticles showed high monodispersity with a low polydispersity index (PDI) value of 0.083 in hexane.

引用

页数：7

共 38 条

[1] Monodisperse sodium oleate coated magnetite high susceptibility nanoparticles for hyperthermia applications [J].