Synthesis and characterization of transition metals (Mn, Fe, Co, Ni) doped tin oxide for magnetic and antimicrobial studies

Materials Science and Engineering: B Pub Date : 2023-11-26 DOI:10.1016/j.mseb.2023.117047

T. Amutha, M. Rameshbabu, S. Sasi Florence, G. Ramalingam, S. Muthupandi, K. Prabha

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Abstract

Dilute magnetic semiconductor oxides (DMSOs) are attractive prospects for improved charge and spin degrees of freedom control. The current research presents an overview of the structural analysis and magnetic characteristics of DMSOs based on binary metal oxide nanomaterials with various ferromagnetic or paramagnetic dopants, such as Mn, Fe, Co, and Ni, which display increased ferromagnetic behaviour at ambient temperature. The co-precipitation approach was used to create nanoparticle samples of pure SnO₂, Sn_0.97Mn_0.03O₂, Sn_0.97Fe_0.03O₂, Sn_0.97Co_0.03O₂, and Sn_0.97Ni_0.03O₂. The emission spectra for the high, wide emission band are 366 nm and 655 nm. Room temperature magnetic hysteresis loops for Mn, Fe, and Ni-doped SnO₂ indicate ferromagnetic behaviour when compared to pure and Co-doped SnO₂, with Sn_0.97Mn_0.03O₂, Sn_0.97Fe_0.07O₂, and Sn_0.97Ni_0.03O₂ samples exhibiting increased coercivity and retentivity. The antibacterial activity of pure SnO₂, Sn_0.97Mn_0.03O₂, Sn_0.97Fe_0.03O₂, Sn_0.97Co_0.03O₂, and Sn_0.97Ni_0.03O₂ nanoparticles was determined.

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磁性和抗菌过渡金属(Mn, Fe, Co, Ni)掺杂氧化锡的合成与表征

稀磁性半导体氧化物(dmso)在改善电荷和自旋自由度控制方面具有良好的前景。目前的研究概述了基于二元金属氧化物纳米材料的dmso的结构分析和磁性特征，这些纳米材料含有各种铁磁性或顺磁性掺杂剂，如Mn, Fe, Co和Ni，它们在环境温度下表现出增强的铁磁性行为。采用共沉淀法制备了纯SnO2、sn0.97 mn0.030 o2、sn0.97 fe0.030 o2、sn0.97 co0.030 o2和sn0.97 ni0.030 o2的纳米颗粒样品。高、宽发射波段的发射光谱分别为366nm和655nm。与纯SnO2和共掺杂SnO2相比，Mn、Fe和ni掺杂SnO2的室温磁滞回线显示出铁磁行为，sn0.97 mn0.030 o2、sn0.97 fe0.070 o2和sn0.97 ni0.030 o2样品的矫顽力和保留力增加。测定了纯SnO2、sn0.97 mn0.030 o2、sn0.97 fe0.030 o2、sn0.97 co0.030 o2和sn0.97 ni0.030 o2纳米颗粒的抗菌活性。

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Materials Science and Engineering: B

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