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Synthesis, characterization and magnetic properties of KFeO_(2) nanoparticles prepared by a simple egg white solution route

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International Journal of Minerals,Metallurgy and Materials 2022年第1期29卷 128-135页

作者： Thongsuk Sichumsaeng Nutthakritta Phromviyo Supree Pinitsoontorn Pinit Kidkhunthod Narong Chanlek Santi Maensiri School of Physics Institute of ScienceSuranaree University of TechnologyNakhon Ratchasima30000Thailand SUT CoE on Advanced Functional Materials Suranaree University of TechnologyNakhon Ratchasima30000Thailand Research Network NANOTEC-SUT on Advanced Nanomaterials and Characterization Suranaree University of TechnologyNakhon Ratchasima30000Thailand Department of Physics Faculty of ScienceKhon Kaen UniversityKhon Kaen40002Thailand Synchrotron Light Research Institute(Public Organizer Nakhon Ratchasima30000Thailand

Nanoparticles of potassium ferrite(KFeO_(2))in this work were synthesized by a simple egg white solution method upon calcination in air at 773,873,and 973 K for 2 h.The effects of calcination temperature on the structural and magnetic properties of the synthesized KFeO_(2) nanoparticles were investigated.By varying the calcination temperature,X-ray diffraction and transmission electron microscopy results indicated the changes in crystallinity and morphology including particle size,respectively.Notably,the reduction in particle size of the synthesized KFeO_(2) was found to have a remarkable influence on the magnetic properties.At room temperature,the synthesized KFeO_(2) nanoparticles prepared at 873 K exhibited the highest saturation magnetization(M_(S))of 2.07×10^(4) A·m^(−1).In addition,the coercivity(H_(C))increased from 3.51 to 16.89 kA·m^(−1) as the calcination temperature increased to 973 K.The zero-field cooled(ZFC)results showed that the blocking temperatures(T_(B))of about 125 and 85 K were observed in the samples calcined at 773 and 873 K,respectively.Therefore,this work showed that the egg white solution method is simple,cost effective,and environmentally friendly for the preparation of KFeO_(2) nanoparticles.

关键词： egg white solution method potassium ferrite nanoparticles magnetic properties ferromagnetism

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