Hierarchical self-assembly nanostructures have an important interest in nanoscience and nanotechnology. This research reports a facile method for self-assembly of silver spheres using the Hamelia patens plant extract as a reducing agent. Furthermore, the degradation of organic dyes assesses the catalytic properties of Ag nanostructures. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), UV–Vis, and Fourier transform infrared techniques characterized the Ag spheres’ morphology and structure. SEM and TEM images revealed porous Ag assemblies with spherical morphologies of an average size of ~2 µm integrated by 20 nm thick petals. Also, more compact Ag spheres with an average size of around 3 µm, containing nanorods of around 100 nm on their surface, were obtained. Energy dispersive spectrometer and XRD techniques determined the chemical composition and crystal structure of the spheres. UV–Vis spectra show bands ranging from 400 to 500 nm, confirming quantum confinement in the material. Silver spheres with petals showed the best degradation performance of organic dyes such as methylene blue, methyl orange, and rhodamine B.

分层自组装纳米结构在纳米科学和纳米技术中具有重要意义。这项研究报告了使用Hamelia patens自组装银球的简便方法植物提取物作为还原剂。此外，有机染料的降解评估了Ag纳米结构的催化性能。扫描电子显微镜（SEM），透射电子显微镜（TEM），X射线衍射（XRD），UV-Vis和傅立叶变换红外技术表征了Ag球的形态和结构。SEM和TEM图像显示多孔Ag组件具有球形形态，平均尺寸为〜2 µm，由20 nm厚的花瓣集成。而且，获得了更紧密的Ag球，其平均尺寸为约3μm，在其表面上包含约100nm的纳米棒。能量色散光谱仪和XRD技术确定了球体的化学成分和晶体结构。UV-Vis光谱显示的波段范围为400至500 nm，这证实了材料中的量子限制。