Single-phase γ-Fe₂O₃ nanoparticles synthesized by green ionothermal method and their magnetic characterization

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• 作者：Maryam Sabbaghan^a ; ^b ; ^{sabbaghan@srttu.edu" class="auth_mail" title="E-mail the corresponding author} ; Pegah Sofalgar^a
• 关键词：γ-Fe2O3 ; Green synthesis ; Nanoparticles ; Ionothermal ; Ionic liquid
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：15 November 2016
• 年：2016
• 卷：42
• 期：15
• 页码：16813-16816
• 全文大小：891 K

文摘

The γ-Fe₂O₃ nanoparticles were prepared by ionothermal method in ionic liquids. A wide range of maghemite particle sizes within the nanometer scale are obtained by this method. The structural and magnetic properties of these γ-Fe₂O₃ particles were studied by using XRD, SEM and IR. Magnetic properties of the prepared nanoparticles were evaluated on a vibrating sample magnometer (VSM). By changing the ionic liquids, particles with an average diameter from 5 to 10 nm were prepared. The size of the final particle decreases with the longer alkyl chain of ionic liquid in this method while the template is bounded to the particle surface. Also magnetic properties of the products change with different ionic liquids. A longer alkyl chain in ionic liquid causes an increase in the magnetic properties in this method.