在这份报纸,有不到 6 nm 的一种吝啬的粒子尺寸的高度散的 nanosized 铜粒子被一个环境地友好的化学减小方法准备。当两个都当任何另外的盖住的代理人不在时在乙烯乙二醇减少代理人和抗氧化剂,无毒的 L 维生素酸行动。传播电子显微镜学(TEM ) 被用来描绘 Cu nanoparticles 的尺寸和形态学。紫外力的光谱学的结果(紫外力) ,散光谱学(版本) 和高分辨率 TEM (HRTEM ) 说明的精力结果的产品是纯 Cu nanocrystals。Cu nanoparticles 的尺寸被试剂增加的顺序显著地影响,并且调查揭示 Cu2+ 离子和 L 维生素酸的反应过程。
In this paper, highly dispersive nanosized copper particles with a mean particle size of less than 6 nm are prepared by an environmentally friendly chemical reduction method. Non-toxic L-ascorbic acid acts as both reducing agent and antioxidant in ethylene glycol in the absence of any other capping agent. Transmission electron microscopy (TEM) is used to characterize the size and morphology of Cu nanoparticles. The results of UV-Vis spectroscopy (UV-Vis), energy dispersive spectroscopy (EDS) and high resolution TEM (HRTEM) illustrate that the resultant product is pure Cu nanocrystals. The size of Cu nanoparticles is remarkably impacted by the order of reagent addition, and the investigation reveals the reaction procedure of Cu^2+ ions and L-ascorbic acid.