Synthesis of size-controlled hollow Fe3O4 nanospheres and their growth mechanism

Lei Shi; Yurong He; Yanwei Hu; Xinzhi Wang; Baocheng Jiang; Yimin Huang

doi:10.1016/j.partic.2019.02.005

Synthesis of size-controlled hollow Fe₃O₄ nanospheres and their growth mechanism

Lei Shi
, Yurong He^*
, Yanwei Hu
, Xinzhi Wang
, Baocheng Jiang
, Yimin Huang

^*Corresponding author for this work

Heilongjiang Key Laboratory of New Energy Storage Materials and Processes
School of Energy Science and Engineering, Harbin Institute of Technology

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

26 Scopus citations

Abstract

Size-controlled hollow Fe₃O₄ nanospheres were synthesized via a one-pot hydrothermal method as a function of reaction time and sodium citrate, polyacrylamide, and urea content. Multiple characterization techniques such as scanning and transmission electron microscopy and Raman spectroscopy were employed to investigate the crystal structure and morphology of the obtained nanospheres. The Fe₃O₄ nanosphere formation mechanism was elucidated from analyzing the characterization data. High levels of sodium citrate and longer reaction times were observed to increase the diameter of the nanospheres until hollow structures formed. Furthermore, polyacrylamide and urea promoted the formation of hollow structures. The hollow-structured Fe₃O₄ nanospheres exhibited high magnetization saturation values in the range of 48.8–58.7 emu/g. The facile synthesis method described herein, to generate size-controlled Fe₃O₄ nanospheres with tailored properties, demonstrates potential across a wide range of fields from drug-delivery and stealth devices, to environmental and energy applications.

Original language	English
Pages (from-to)	16-23
Number of pages	8
Journal	Particuology
Volume	49
DOIs	https://doi.org/10.1016/j.partic.2019.02.005
State	Published - Apr 2020
Externally published	Yes

Keywords

FeO nanoparticles
Magnetic properties
Sphere size

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10.1016/j.partic.2019.02.005

Cite this

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title = "Synthesis of size-controlled hollow Fe3O4 nanospheres and their growth mechanism",

abstract = "Size-controlled hollow Fe3O4 nanospheres were synthesized via a one-pot hydrothermal method as a function of reaction time and sodium citrate, polyacrylamide, and urea content. Multiple characterization techniques such as scanning and transmission electron microscopy and Raman spectroscopy were employed to investigate the crystal structure and morphology of the obtained nanospheres. The Fe3O4 nanosphere formation mechanism was elucidated from analyzing the characterization data. High levels of sodium citrate and longer reaction times were observed to increase the diameter of the nanospheres until hollow structures formed. Furthermore, polyacrylamide and urea promoted the formation of hollow structures. The hollow-structured Fe3O4 nanospheres exhibited high magnetization saturation values in the range of 48.8–58.7 emu/g. The facile synthesis method described herein, to generate size-controlled Fe3O4 nanospheres with tailored properties, demonstrates potential across a wide range of fields from drug-delivery and stealth devices, to environmental and energy applications.",

keywords = "FeO nanoparticles, Magnetic properties, Sphere size",

author = "Lei Shi and Yurong He and Yanwei Hu and Xinzhi Wang and Baocheng Jiang and Yimin Huang",

note = "Publisher Copyright: {\textcopyright} 2019 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences",

year = "2020",

month = apr,

doi = "10.1016/j.partic.2019.02.005",

language = "英语",

volume = "49",

pages = "16--23",

journal = "Particuology",

issn = "1674-2001",

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}

TY - JOUR

T1 - Synthesis of size-controlled hollow Fe3O4 nanospheres and their growth mechanism

AU - Shi, Lei

AU - He, Yurong

AU - Hu, Yanwei

AU - Wang, Xinzhi

AU - Jiang, Baocheng

AU - Huang, Yimin

PY - 2020/4

Y1 - 2020/4

N2 - Size-controlled hollow Fe3O4 nanospheres were synthesized via a one-pot hydrothermal method as a function of reaction time and sodium citrate, polyacrylamide, and urea content. Multiple characterization techniques such as scanning and transmission electron microscopy and Raman spectroscopy were employed to investigate the crystal structure and morphology of the obtained nanospheres. The Fe3O4 nanosphere formation mechanism was elucidated from analyzing the characterization data. High levels of sodium citrate and longer reaction times were observed to increase the diameter of the nanospheres until hollow structures formed. Furthermore, polyacrylamide and urea promoted the formation of hollow structures. The hollow-structured Fe3O4 nanospheres exhibited high magnetization saturation values in the range of 48.8–58.7 emu/g. The facile synthesis method described herein, to generate size-controlled Fe3O4 nanospheres with tailored properties, demonstrates potential across a wide range of fields from drug-delivery and stealth devices, to environmental and energy applications.

AB - Size-controlled hollow Fe3O4 nanospheres were synthesized via a one-pot hydrothermal method as a function of reaction time and sodium citrate, polyacrylamide, and urea content. Multiple characterization techniques such as scanning and transmission electron microscopy and Raman spectroscopy were employed to investigate the crystal structure and morphology of the obtained nanospheres. The Fe3O4 nanosphere formation mechanism was elucidated from analyzing the characterization data. High levels of sodium citrate and longer reaction times were observed to increase the diameter of the nanospheres until hollow structures formed. Furthermore, polyacrylamide and urea promoted the formation of hollow structures. The hollow-structured Fe3O4 nanospheres exhibited high magnetization saturation values in the range of 48.8–58.7 emu/g. The facile synthesis method described herein, to generate size-controlled Fe3O4 nanospheres with tailored properties, demonstrates potential across a wide range of fields from drug-delivery and stealth devices, to environmental and energy applications.

KW - FeO nanoparticles

KW - Magnetic properties

KW - Sphere size

UR - https://www.scopus.com/pages/publications/85069629163

U2 - 10.1016/j.partic.2019.02.005

DO - 10.1016/j.partic.2019.02.005

M3 - 文章

AN - SCOPUS:85069629163

SN - 1674-2001

VL - 49

SP - 16

EP - 23

JO - Particuology

JF - Particuology

ER -

Synthesis of size-controlled hollow Fe₃O₄ nanospheres and their growth mechanism

Abstract

Keywords

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