Structural, Thermal, and Magnetic Characterization Analysis of Synthesized Fe3O4-Spinel Ferrite Nanoparticles

B. Gogoi, Upamanyu Das
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引用次数: 1

Abstract

Spinel ferrite nanoparticles are potential candidates for multiple biomedical applications. Spinel ferrite nanoparticles have been studied extensively for understanding physical, chemical, electro-optical as well as magnetic properties which are fascinating due to cationic distributions corresponding to tetrahedral sites and octahedral sites in a cubic phase. Biocompatibility and large magnetic moment are basic requirements in spinel ferrite nanoparticles for efficient functioning in specific application purpose. Fe3O4 (magnetite) is an important member of spinel ferrite group with high chemical stability and ferrimagetic material property at nanodimension. Superparamagnetic state and biocompatibility of magnetite (Fe3O4) spinel ferrite nanoparticle has already been proven. Spinel ferrite magnetite nanoparticles have been developed based on precipitation of iron oxide using ferric and ferrous ions at the ratio 2:1 in alkaline media at and above 100°C. The experimental parameters have been set to synthesize pure and uniformly sized magnetite nanoparticles. No other phases of iron oxides were detected other than magnetite spinel phase in the XRD result. The average crystal size has been determined from XRD peak broadening. Absorption spectra were investigated using UV-Vis Spectrometer and FTIR. Thermal and magnetic measurements were carried out Digital Scanning Calorimeter and SQUID Magnetometer. One sample of the prepared nanoparticles with polymer coating of polyvinyl alcohol has been studied for superparamagnetic nature. Superparamagnetic particles show saturation value of magnetization 51.26 emu/g at 100 K. ZFC-FC curves for two samples with polymer coating of polyvinyl alcohol and hydroxy-propyl methyl cellulose have also been studied. Keywords: Spinel Ferrite, Magnetite, Ferrimagnetism, Transition metal oxide, Superparamagnetism. Statements and declarations Competing Interests: The authors declare that there is no competing financial interest that are related directly or indirectly to the reported work in this paper. Conflict of interest: There is no conflict of interest. Acknowledgements The Authors are grateful to IISER Bhopal, CRF facility for providing instrumentation facility to characterize magnetic properties. We acknowledge thanks to Lovely Professional University for providing us necessary characterization technique for the XRD analysis and thermal analysis.
合成fe3o4 -尖晶石铁氧体纳米颗粒的结构、热、磁特性分析
尖晶石铁氧体纳米粒子是多种生物医学应用的潜在候选者。尖晶石铁氧体纳米粒子的物理、化学、电光和磁性被广泛研究,这些特性是由于立方相中四面体和八面体位置对应的阳离子分布而引起的。生物相容性和大磁矩是尖晶石铁氧体纳米粒子在特定应用中有效发挥作用的基本要求。Fe3O4(磁铁矿)是尖晶石铁氧体族的重要成员,在纳米尺度上具有较高的化学稳定性和铁磁性。磁铁矿(Fe3O4)尖晶石铁氧体纳米颗粒的超顺磁性和生物相容性已经得到证实。尖晶石铁氧体磁铁矿纳米颗粒是基于铁离子和亚铁离子在碱性介质中以2:1的比例沉淀氧化铁而开发的。设定了实验参数,合成了纯度高、粒径均匀的磁铁矿纳米颗粒。XRD结果中除磁铁矿尖晶石相外,未检出其他氧化铁相。通过XRD峰展宽测定了平均晶粒尺寸。用紫外-可见光谱和红外光谱研究了吸收光谱。采用数字扫描量热仪和SQUID磁力计进行热、磁测量。对聚乙烯醇聚合物包覆的纳米粒子样品进行了超顺磁性研究。超顺磁粒子在100 K时磁化强度达到51.26 emu/g。研究了以聚乙烯醇和羟丙基甲基纤维素为涂层的两种样品的ZFC-FC曲线。关键词:尖晶石铁氧体,磁铁矿,铁磁性,过渡金属氧化物,超顺磁性。利益竞争:作者声明,不存在与本文报道工作直接或间接相关的经济利益竞争。利益冲突:不存在利益冲突。作者感谢CRF机构IISER Bhopal提供表征磁性能的仪器设备。我们感谢Lovely Professional University为我们提供了XRD分析和热分析所需的表征技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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