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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Next Nanotechnology

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