Journal of Jilin Institute of Chemical Technology, 2022, 39(1): 35-40    doi: 10.16039/j.cnki.cn22-1249.2022.01.006
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Study on Magnetic Fe3O4 Hollow Nanospheres and Its Performance Controlled by Different Molecular Weight Polyethylene Glycol
LIU Maolin1, YAN Xiao2, WANG Yong-peng1*, LIU Mengzhu1, QIE Ye1, ZHAO Kang1
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Abstract  

A series of magnetic hollow Fe3O4 nanospheres were synthesized by hydrothermal method, and the different methods in the synthesis process were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetry (TG), and hysteresis loop. The influence of molecular weight polyethylene glycol (PEG400、1000、4000) and its addition amount on the particle size, magnetic properties and sedimentation properties of Fe3O4 microspheres. The study found that when the molecular weight of polyethylene glycol is the same, the magnetic Fe3O4 hollow nanospheres obtained by adding 0.6g polyethylene glycol have better dispersibility in water and organic solvent DMAc than 0.3g polyethylene glycol. The resulting microspheres for particle size is larger and the magnetic properties are similar. Compared with the amount of polyethylene glycol added, the molecular weight of polyethylene glycol has a greater impact on the magnetic properties of the magnetic Fe3O4 hollow nanospheres. The particle size of the magnetic Fe3O4 hollow nanospheres can be adjusted by changing the molecular weight of polyethylene glycol. The particle size of the magnetic Fe3O4 hollow nanospheres has a decreasing trend with the increase of the molecular weight of polyethylene glycol. The magnetic Fe3O4 hollow nanospheres obtained by adjusting polyethylene glycol have good dispersibility in water and organic solvent dimethylacetamide (DMAc), especially in water solvent for 8 days to completely settle, add 0.6g The magnetic hollow Fe3O4 nanospheres obtained by PEG4000 have outstanding dispersibility in DMAc, and are expected to be well applied in the fields of wastewater treatment and electromagnetic wave absorption.

Key words Fe3O4      hydrothermal method      magnetic hollow nanospheres      polyethylene glycol      
Published: 25 January 2022
:  TQ138.1  
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LIU Maolin
YAN Xiao
WANG Yong-peng
LIU Mengzhu
QIE Ye
ZHAO Kang
Cite this article:   
LIU Maolin,YAN Xiao,WANG Yong-peng, et al. Study on Magnetic Fe3O4 Hollow Nanospheres and Its Performance Controlled by Different Molecular Weight Polyethylene Glycol [J]. Journal of Jilin Institute of Chemical Technology, 2022, 39(1): 35-40.
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https://xuebao.jlict.edu.cn/EN/10.16039/j.cnki.cn22-1249.2022.01.006     OR     https://xuebao.jlict.edu.cn/EN/Y2022/V39/I1/35