Surfactants free synthesis of superparamagnetic magnetite (Fe3O4) nanoparticles : Spectroscopic, magnetic and AFM studies

被引：0

作者：

Gautam, Ravindra Kumar ^{[1
]}

Banerjee, Sushmita ^{[1
]}

Gautam, Pavan Kumar ^{[1
]}

Jaiswal, Amita ^{[1
]}

Mani, Raj ^{[1
]}

Singh, Dharmveer ^{[1
]}

Pandey, J. D. ^{[1
]}

Chattopadhyaya, Mahesh Chandra ^{[1
]}

机构：

[1] Univ Allahabad, Dept Chem, Environm Chem Res Lab, Allahabad 211002, Uttar Pradesh, India

来源：

JOURNAL OF THE INDIAN CHEMICAL SOCIETY | 2016年 / 93卷 / 06期

关键词：

Magnetite nanoparticles; colloidal method; superparamagnetic; TEM; AFM; SQUID;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Superparamagnetic Fe3O4 nanoparticles with diameter of similar to 7 nm were prepared by a colloidal method, without employing surfactants and using precursors like FeCl3 center dot 6H(2)O, FeSO4 center dot 7H(2)O, deionized water and using NH4OH solution (29% vol.) as precipitating agent. The synthesized product was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy attached with energy dispersive X-ray (SEM-EDS), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET) surface area, thermogravimetric analysis (TGA-DTG), and atomic force microscopy (AFM). The hysteresis loops of the magnetite nanoparticles were measured using a superconducting quantum interference device (SQUID) and the results showed a superparamagnetic behavior at room temperature.

引用

页码：649 / 654

页数：6

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