Size-controlled synthesis of Fe3O4 and Fe3O4@SiO2 nanoparticles and their superparamagnetic properties tailoring

Muhammad Sajid; Sidra Shuja; Hongpan Rong; Jiatao Zhang

doi:10.1016/j.pnsc.2022.08.003

Size-controlled synthesis of Fe₃O₄ and Fe₃O₄@SiO₂ nanoparticles and their superparamagnetic properties tailoring

Muhammad Sajid
, Sidra Shuja
, Hongpan Rong
, Jiatao Zhang^*

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

62 Citations (Scopus)

Abstract

Superparamagnetic properties and fine-tuning of colloidal Fe₃O₄ nanoparticles are important for their widespread biomedical applications. Herein, colloidal Fe₃O₄ nanoparticles (NPs) of different sizes (8–20 nm) were prepared, and their hydrophilization with SiO₂ shell coating to be Fe₃O₄@SiO₂ core-shell had been realized successively. The size of Fe₃O₄ NPs was controlled by different heating rates. Transmission electron microscope (TEM), powder X-ray diffractometry (XRD), and vibrating sample magnetometer (VSM) were performed to examine the morphology, crystallinity, and magnetic properties of the prepared Fe₃O₄ and Fe₃O₄@SiO₂ core-shell NPs, respectively. In addition, high resolution transmission electron microscope (HRTEM) results suggested that Fe₃O₄ NPs had well crystallization. Enabled by such, their superparamagnetic properties can be fine-tuned accordingly and cater to their potential applications.

Original language	English
Pages (from-to)	116-119
Number of pages	4
Journal	Progress in Natural Science: Materials International
Volume	33
Issue number	1
DOIs	https://doi.org/10.1016/j.pnsc.2022.08.003
Publication status	Published - Feb 2023

Keywords

Aqueous inverse microemulsion
Core-shell
FeO nanoparticles
FeO@SiO hydrophilization
Superparamagnetic

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title = "Size-controlled synthesis of Fe3O4 and Fe3O4@SiO2 nanoparticles and their superparamagnetic properties tailoring",

abstract = "Superparamagnetic properties and fine-tuning of colloidal Fe3O4 nanoparticles are important for their widespread biomedical applications. Herein, colloidal Fe3O4 nanoparticles (NPs) of different sizes (8–20 nm) were prepared, and their hydrophilization with SiO2 shell coating to be Fe3O4@SiO2 core-shell had been realized successively. The size of Fe3O4 NPs was controlled by different heating rates. Transmission electron microscope (TEM), powder X-ray diffractometry (XRD), and vibrating sample magnetometer (VSM) were performed to examine the morphology, crystallinity, and magnetic properties of the prepared Fe3O4 and Fe3O4@SiO2 core-shell NPs, respectively. In addition, high resolution transmission electron microscope (HRTEM) results suggested that Fe3O4 NPs had well crystallization. Enabled by such, their superparamagnetic properties can be fine-tuned accordingly and cater to their potential applications.",

keywords = "Aqueous inverse microemulsion, Core-shell, FeO nanoparticles, FeO@SiO hydrophilization, Superparamagnetic",

author = "Muhammad Sajid and Sidra Shuja and Hongpan Rong and Jiatao Zhang",

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year = "2023",

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doi = "10.1016/j.pnsc.2022.08.003",

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AU - Sajid, Muhammad

AU - Shuja, Sidra

AU - Rong, Hongpan

AU - Zhang, Jiatao

PY - 2023/2

Y1 - 2023/2

N2 - Superparamagnetic properties and fine-tuning of colloidal Fe3O4 nanoparticles are important for their widespread biomedical applications. Herein, colloidal Fe3O4 nanoparticles (NPs) of different sizes (8–20 nm) were prepared, and their hydrophilization with SiO2 shell coating to be Fe3O4@SiO2 core-shell had been realized successively. The size of Fe3O4 NPs was controlled by different heating rates. Transmission electron microscope (TEM), powder X-ray diffractometry (XRD), and vibrating sample magnetometer (VSM) were performed to examine the morphology, crystallinity, and magnetic properties of the prepared Fe3O4 and Fe3O4@SiO2 core-shell NPs, respectively. In addition, high resolution transmission electron microscope (HRTEM) results suggested that Fe3O4 NPs had well crystallization. Enabled by such, their superparamagnetic properties can be fine-tuned accordingly and cater to their potential applications.

AB - Superparamagnetic properties and fine-tuning of colloidal Fe3O4 nanoparticles are important for their widespread biomedical applications. Herein, colloidal Fe3O4 nanoparticles (NPs) of different sizes (8–20 nm) were prepared, and their hydrophilization with SiO2 shell coating to be Fe3O4@SiO2 core-shell had been realized successively. The size of Fe3O4 NPs was controlled by different heating rates. Transmission electron microscope (TEM), powder X-ray diffractometry (XRD), and vibrating sample magnetometer (VSM) were performed to examine the morphology, crystallinity, and magnetic properties of the prepared Fe3O4 and Fe3O4@SiO2 core-shell NPs, respectively. In addition, high resolution transmission electron microscope (HRTEM) results suggested that Fe3O4 NPs had well crystallization. Enabled by such, their superparamagnetic properties can be fine-tuned accordingly and cater to their potential applications.

KW - Aqueous inverse microemulsion

KW - Core-shell

KW - FeO nanoparticles

KW - FeO@SiO hydrophilization

KW - Superparamagnetic

UR - https://www.scopus.com/pages/publications/85151826090

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JO - Progress in Natural Science: Materials International

JF - Progress in Natural Science: Materials International

IS - 1

ER -

Size-controlled synthesis of Fe₃O₄ and Fe₃O₄@SiO₂ nanoparticles and their superparamagnetic properties tailoring

Abstract

Keywords

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