橙果皮提取物浓度对氧化锌纳米颗粒合成的影响

IF 3 Q2 CHEMISTRY, ANALYTICAL
Emebet Wondmnew, Getachew Tizazu
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引用次数: 0

摘要

本研究考察了还原剂浓度对氧化锌纳米颗粒(ZnO NPs)合成的影响。在合成过程中,对离子电导率进行了评估,结果显示,在引入还原剂之前,电导率显著增加,而在加入还原剂之后,电导率急剧下降。氧化锌纳米粒子的表征包括紫外可见光谱、扫描电子显微镜、傅立叶变换红外光谱和 X 射线衍射分析。结果表明,氧化锌纳米粒子的特性受合成过程中还原剂浓度的影响。值得注意的是,使用较高浓度还原剂合成的 ZnO NPs 具有较窄的光带隙和较高的表面能。此外,使用浓度为 0.5 v/v 的还原剂可快速生成尺寸相对均匀的 NPs。相反,浓度低于 0.5 v/v 会导致形成缓慢,而浓度超过 0.5 v/v 则会产生不均匀的 NPs。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effect of orange fruit peel extract concentration on the synthesis of zinc oxide nanoparticles

Effect of orange fruit peel extract concentration on the synthesis of zinc oxide nanoparticles

In this investigation, the impact of reducing agent concentration on the synthesis of zinc oxide nanoparticles (ZnO NPs) was examined. During the synthesis, an assessment of ionic conductivity was carried out, revealing a significant increase in conductivity prior to the introduction of the reducing agent, followed by a sharp decrease upon its addition. Characterization of the ZnO NPs involved ultraviolet-visible spectroscopy, scanning electron microscopy, Fourier-transform infrared spectroscopy, and, X-ray diffraction analysis. The outcomes suggest that the characteristics of the ZnO NPs are influenced by the concentration of the reducing agent during the synthesis process. Notably, the ZnO NPs synthesized with a higher concentration of reducing agent exhibited a narrower optical band gap and increased surface energy. Furthermore, employing a concentration of 0.5 v/v resulted in the rapid production of NPs with relatively uniform sizes. Conversely, concentrations below 0.5 v/v lead to slow formation, while concentrations exceeding 0.5 v/v yielded non-uniform NPs.

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