TY - JOUR
T1 - Size-controlled synthesis of Fe3O4 and Fe3O4@SiO2 nanoparticles and their superparamagnetic properties tailoring
AU - Sajid, Muhammad
AU - Shuja, Sidra
AU - Rong, Hongpan
AU - Zhang, Jiatao
N1 - Publisher Copyright:
© 2022 Chinese Materials Research Society
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 - http://www.scopus.com/inward/record.url?scp=85151826090&partnerID=8YFLogxK
U2 - 10.1016/j.pnsc.2022.08.003
DO - 10.1016/j.pnsc.2022.08.003
M3 - Article
AN - SCOPUS:85151826090
SN - 1002-0071
VL - 33
SP - 116
EP - 119
JO - Progress in Natural Science: Materials International
JF - Progress in Natural Science: Materials International
IS - 1
ER -