Preparation of modified SrAl 1.3 Fe 10.7 O 19 nanostructures and evaluation of size influence on its optical and magnetic properties

Micro & nano letters

article

Reza Peymanfar¹  Abdollah Javidan²  Elnaz Selseleh-Zakerin¹ 

[1] Department of Chemical Engineering, Energy Institute of Higher Education;Department of Basic Sciences, Imam Hossein University

关键词: ultraviolet spectra;    nanoparticles;    nanofabrication;    X-ray chemical analysis;    transmission electron microscopy;    X-ray diffraction;    visible spectra;    nanomagnetics;    sol-gel processing;    particle size;    field emission scanning electron microscopy;    crystal morphology;    strontium compounds;    aluminium compounds;    reflectivity;    saturation magnetisation;    magnetometry;    ferrites;    optical properties;    magnetic hysteresis loops;    hydrophilic absorbent cotton;    HAC;    field emission scanning electron microscopy;    energy-dispersive X-ray spectroscopy;    modified sol–gel method;    Fourier transform infrared spectra;    saturation magnetisation;    nanostructure morphology;    diffuse reflection spectroscopy;    vibrating sample magnetometry;    nanoparticles;    X-ray diffraction;    UV-Vis light absorption spectra;    particle size;    SrAl1.3Fe10.7O9;   

DOI  :  10.1049/mnl.2020.0134

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Modifying the morphology of nanostructures and its influence on the features of the tailored nanoparticles (NPs) has attracted a great deal of interest. In this research, the morphological effect on magnetic properties of the bare or modified NPs was investigated. Bare NPs were fabricated by the sol–gel route and modified NPs were prepared using hydrophilic absorbent cotton (HAC) to architect morphology of the NPs. X-ray diffraction, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and Fourier transform infrared analyses confirmed that pure SrAl 1.3 Fe 10.7 O 19 NPs were synthesised based on the modified sol–gel method. Results indicated that HAC as a novel and affordable template modified the shape of the NPs. The obtained results by the diffuse reflection spectroscopy suggest that the optical performance of the NPs can be tuned by modifying the size of them. Additionally, the hysteresis loops of the vibrating sample magnetometer attested that the saturation magnetisation ( M s ) of the modified NPs was elevated.

【 授权许可】

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