Preparation, characterization and magnetic properties of the BaFe12O19 @ chitosan composites

被引：9

作者：

Li, Lei ^{[1
]}

Zhang, Zunju ^{[2
]}

Xie, Yu ^{[3
]}

Zhao, Jie ^{[3
]}

机构：

[1] Northeast Petr Univ, Qinhuangdao Branch Sch, Qinhuangdao 066004, Peoples R China

[2] Environm Management Coll China, Qinhuangdao 066004, Peoples R China

[3] Nanchang Hangkong Univ, Coll Environm & Chem Engn, Nanchang 330063, Peoples R China

来源：

SOLID STATE SCIENCES | 2016年 / 57卷

基金：

中国国家自然科学基金;

关键词：

Composite materials; Magnetic materials; Oxides; Chemical synthesis; Magnetic properties; MICROWAVE-ABSORPTION PROPERTIES; ELECTROMAGNETIC PROPERTIES; ELECTRICAL-CONDUCTIVITY; NANOPARTICLES; COMPLEXES; TEMPERATURE; SORPTION;

D O I：

10.1016/j.solidstatesciences.2016.05.003

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The BaFe12O19 @ chitosan composites are synthesized by the crosslinking reaction through chitosan and glutaraldehyde onto the surface of BaFe12O19. The structures of the samples were characterized by Fourier transform infrared spectroscopy and X-ray diffraction. The shape and size were observed by scanning electron microscopy and transmission electron microscopy. These results showed that chitosan has been decorated onto the surface of BaFe12O19, and the chitosan-glutaraldehyde Schiff-base composites have also been formed within the chitosan layers. Then, the magnetic properties of the samples were tested with the vibrating sample magnetometer. The magnetic saturation (M-S), residual magnetization (M-r) and coercive force (H-c) values of the BaFe12O19 @ chitosan Schiff-base composite have achieved 44.94 emu/g, 27.82 emu/g and 3580.7 Oe, respectively. Compared with single BaFe12O19, the Ms, and Mr of the BaFe12O19 @ chitosan composites decreases 12.31 emu/g and 8.58 emu/g, respectively. Finally, based on the experimental results, the probable formation mechanism of this composite has been investigated. (C) 2016 Elsevier Masson SAS. All rights reserved.

引用

页码：44 / 48

页数：5

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