Plant protein-mediated size-controlled synthesis of magnetite nanoparticles – Studies on optical properties

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-01-23 DOI:10.4314/bcse.v38i2.16

Amlan Kumar Das, Vijendra Singh Solanki, Apoorva Fanan, Neha Agarwal, Virendra Kumar Yadav

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Abstract

In today’s scenario nanotechnology has great importance in all scientific and non-scientific sectors. In this study, we have synthesized magnetite nanoparticles coated by the proteins available in the Datura leaf extract through a green and eco-friendly method. From the resulting spectrum obtained on Fe3O4 for different volumes of leaf extract of Datura leaf, the surface plasmon resonance seems to be varying with the volume of capping agent. The data shows that as the volume of capping agent increases the SPR value is shifted to red-end. The Eg values increase with the increasing volume of capping agents. The evaluated band gap (Eg) values are close to semiconductors (0-3 eV). The values indicate that the formed Fe3O4 nanoparticles are marginally semiconducting. The Eg values are found to be dependent upon the volume of the capping agent. The properties of nano-sized semiconductor particles depend on particle size. Here, the absorption peaks (λmax) are consistently increased giving rise to red-shift. The value of surface plasmon resonance shift confirmed that particle size is decreased. KEY WORDS: Green synthesis, Magnetite nanoparticles (MNPs), Leaf extract, Band gap, Optical properties, Surface plasmon resonance Bull. Chem. Soc. Ethiop. 2024, 38(2), 493-499. DOI: https://dx.doi.org/10.4314/bcse.v38i2.16

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植物蛋白介导的尺寸可控磁铁矿纳米粒子合成--光学特性研究

在当今形势下，纳米技术在所有科学和非科学领域都具有重要意义。在这项研究中，我们通过绿色环保的方法，利用曼陀罗叶提取物中的蛋白质合成了磁铁矿纳米粒子。从不同体积的曼陀罗叶提取物在 Fe3O4 上获得的光谱来看，表面等离子体共振似乎随封盖剂体积的变化而变化。数据显示，随着封端剂体积的增加，SPR 值向红端移动。Eg 值随着封端剂体积的增加而增加。评估的带隙（Eg）值接近半导体（0-3 eV）。这些值表明所形成的 Fe3O4 纳米粒子具有微弱的半导体性。Eg 值取决于封端剂的体积。纳米级半导体颗粒的特性取决于颗粒大小。在这里，吸收峰（λmax）持续增加，导致红移。表面等离子体共振偏移值证实颗粒尺寸减小。关键词：绿色合成磁铁矿纳米颗粒（MNPs）叶提取物带隙光学特性表面等离子体共振 Bull.Chem.Soc.2024, 38(2), 493-499. DOI: https://dx.doi.org/10.4314/bcse.v38i2.16

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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