Investigation of calcination temperature effect on crystallographic, morphological, optical, and magnetic properties of silver-doped magnesium ferrite nanoparticles

Next Nanotechnology Pub Date : 2025-01-01 DOI:10.1016/j.nxnano.2025.100140

Sk Hasnat Taref Zim , Md Naimur Rahman Naim , Md Alamgir Hossain , Md Sohel Sikder

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Abstract

Silver-doped magnesium ferrite was synthesized via the chemical co-precipitation method by calcination at temperatures of 800°C, 900°C, and 1000°C. At these temperatures, x-ray diffraction analysis measured crystalline sizes of 30.67, 31.09, and 41.32 nm while investigating calcination effects on interionic bond lengths, distances, and angles, thereby influencing superexchange interactions that determine the magnetic properties. SEM images showed well-defined nanoparticle sizes ranging from 349.36 to 685.53 nm, with a variation in crystal number containing 11–17. UV spectroscopy revealed optimal semiconductor behavior, with wide energy band gaps ranging from 4.77 to 5.07 eV. VSM studied the magnetic properties; coercivity varied from 705.88 to 478.24 Oe, while saturation magnetization decreased from 65.05 to 44.41 emu/g as the crystalline size increased. Notably, among the different calcination temperatures for the AMSF nanoparticles, the sample calcined at 800°C demonstrated the best performance.

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煅烧温度对掺银铁氧体镁纳米颗粒晶体学、形态学、光学和磁性能的影响

采用化学共沉淀法，在800℃、900℃和1000℃的温度下煅烧合成了掺银铁氧体镁。在这些温度下，x射线衍射分析测量了30.67、31.09和41.32 nm的晶体尺寸，同时研究了煅烧对离子间键长度、距离和角度的影响，从而影响了决定磁性能的超交换相互作用。SEM图像显示，纳米颗粒粒径在349.36 ~ 685.53 nm之间，晶体数为11 ~ 17。紫外光谱显示出最佳的半导体性能，具有4.77 ~ 5.07 eV的宽能带隙。VSM研究了磁性能；矫顽力变化范围为705.88 ~ 478.24 Oe，饱和磁化强度随着晶粒尺寸的增大从65.05 ~ 44.41 emu/g减小。值得注意的是，在不同的AMSF纳米颗粒煅烧温度下，800℃煅烧的样品表现出最好的性能。

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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Next Nanotechnology

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