Synthesis and magnetic properties of bacterial cellulose-ferrite (MFe2O4, M = Mn, Co, Ni, Cu) nanocomposites prepared by co-precipitation method

被引：8

作者：

Sriplai N. ^{[1
]}

Mongkolthanaruk W. ^{[2
]}

Pinitsoontorn S. ^{[3
,4
]}

机构：

[1] Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen

[2] Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen

[3] Integrated Nanotechnology Research Center, Department of Physics, Khon Kaen University, Khon Kaen

[4] Nanotec-KKU Center of Excellence on Advanced Nanomaterials for Energy Production and Storage, Khon Kaen University, Khon Kaen

来源：

Advances in Natural Sciences: Nanoscience and Nanotechnology | 2017年 / 8卷 / 03期

关键词：

Bacterial cellulose; Ferrite; Magnetic property; Nanocomposite;

D O I：

10.1088/2043-6254/aa7229

中图分类号：

学科分类号：

摘要：

The magnetic nanocomposites based on bacterial cellulose (BC) matrix and ferrite (MFe2O4, M = Mn, Co, Ni and Cu) nanoparticles (NPs) were fabricated. The never-dried and freezedried BC nanofibrils were used as templates and a co-precipitation method was applied for NPs synthesis. The nanocomposites were either freeze-dried or annealed before subjected to characterization. The x-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy showed that only MnFe2O4 and CoFe2O4 NPs could be successfully incorporated in the BC nanostructures. The results also indicated that the BC template should be freezedried prior to the co-precipitation process. The magnetic measurement by a vibrating sample magnetometer (VSM) showed that the strongest ferromagnetic signal was found for BC-CoFe2O4 nanocomposites. The morphological investigation by a scanning electron microscope (SEM) showed the largest volume fraction of NPs in the BC-CoFe2O4 sample which was complimentary to the magnetic property measurement. Annealing resulted in the collapse of the opened nanostructure of the BC composites. © 2017 Vietnam Academy of Science & Technology .

引用

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