Details

Autor(en) / Beteiligte

• Zamora-Mendoza, M.T.
• López-Miranda, J. Luis
• Rosas, G.

Titel

A green approach for self-assembly of Ag-Au nanoparticles into 3-D arrays

Ist Teil von

• Materials letters, 2017-01, Vol.186, p.311-313

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this investigation, we report the formation of new 3-D aggregates consisting of Ag-Au nanoparticles obtained in aqueous solution by a facile method using Aloysia triphylla plant extract as a reducing and stabilizing agent. SEM and EDS analysis reveal that the dimensions of 3-D arrays are estimated to be about 2.5µm wide, 0.5µm thick, and 2µm long. The 3-D geometric aggregates have strong microstructures that are similar to those of ordinary crystalline materials. The microstructures are close-packed with straight edges and facets but do not have grain boundaries. HRTEM images indicate that the 3-D arrays are a consequence of the nanoparticles aggregation inside an organic matrix and the presence of Au forming the BNPs. [Display omitted] •Aloysiatriphylla leaves extract was used to silver-gold nanoparticles preparation.•Self-assembly Au-Ag nanostructures were synthesized in a facile green method.•Silver-gold nanoparticles self-assembled into 3D arrays.•The dimensions of 3D arrays are about 2.5µm wide, 0.5µm thick and 2µm long.•The nanoparticles are aggregates inside an organic matrix constrained by the AgCl compound.