A SIMPLE AND GREEN TECHNIQUE TO SYNTHESIZE METAL NANOCOLLOIDS BY ULTRASHORT LIGHT PULSES

JESICA MARÍA JOSÉ SANTILLÁN; DAVID MUÑETÓN ARBOLEDA; VALERIA BEATRIZ ARCE; LUCÍA BEATRIZ SCAFFARDI; DANIEL CARLOS SCHINCA

Colloids - Types, Preparation and Applications

IntechOpen

Lugar: Londres; Año: 2020; p. 1 - 20

In this chapter Ag, Ni and Fe nanocolloids synthesized by ?green? ultrashortpulse laser ablation of solid metal targets using different pulse energies and liquidmedia are characterized by different techniques. Optical extinction spectroscopy(OES), micro-Raman spectroscopy (MRS), transmission electron microscopy(TEM) and electron diffraction (ED) were independently used to analyses optical,morphological and compositional properties of the generated nanocolloids. In adeeper way, the stability characteristics of Ag nanocolloids in aqueous solutionswith different stabilizers were studied owing to their potential use in biocompatiblecompounds. Besides, due to their interesting applications, few atoms Ag nanoclusters (NCs) were synthesized by the same way and then analyzed their fluorescentand photocatalytic properties. On the other hand, to expand the characterization ofthe nanocolloids, their magnetic behavior was inspected for the Ni and Fe by vibrating sample magnetometry (VSM).Keywords: nanocolloids, green synthesis, metal nanoparticles, nanoclusters,femtosecond laser ablation