期刊
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
卷 97, 期 2, 页码 320-328出版社
SPRINGER
DOI: 10.1007/s10971-020-05463-0
关键词
Nanostructures; Self-assembly; Silver spheres; Hamelia patens extract; Colloidal method; Catalytic activity
资金
- Consejo Nacional de Ciencia y Tecnologia (CONACYT)
This research presents a simple method for self-assembly of silver spheres using Hamelia patens plant extract as a reducing agent, and investigates the morphology, structure, and catalytic properties of the Ag nanostructures. The study demonstrates that silver spheres with petals exhibit the best degradation performance of organic dyes.
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 similar to 2 mu m integrated by 20 nm thick petals. Also, more compact Ag spheres with an average size of around 3 mu m, 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.
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