Synthesis of silver nanoparticles using agar–agar water solution and femtosecond pulse laser irradiation

[Display omitted] ► Green synthesis of spherical silver nanoparticles using agar–agar. ► Reduction of silver nanoparticles diameter by femtosecond pulse laser irradiation. ► Silver nanoparticles of different sizes. ► No additives, such as solvents, surfactants or reducing agents were used in the pro...

Full description

Saved in:
Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2013-04, Vol.423, p.58-62
Main Authors: Matos, Ricardo Almeida de, Cordeiro, Thiago da Silva, Samad, Ricardo Elgul, Sicchieri, Letícia Bonfante, Vieira Júnior, Nilson Dias, Courrol, Lilia Coronato
Format: Article
Language:English
Subjects:
absorption
agar
colloids
energy-dispersive X-ray analysis
Femtoseconds
Green synthesis
ions
Irradiation
Laser ablation
Lasers
Light (visible radiation)
Light scattering
lighting
Nanoparticles
nanosilver
particle size
Photolysis
reducing agents
Silver
Silver nanoparticles
solvents
spectroscopy
surfactants
Synthesis
transmission electron microscopy
X-radiation
xenon
Xenon lamps
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] ► Green synthesis of spherical silver nanoparticles using agar–agar. ► Reduction of silver nanoparticles diameter by femtosecond pulse laser irradiation. ► Silver nanoparticles of different sizes. ► No additives, such as solvents, surfactants or reducing agents were used in the procedure. We report a method to synthetize silver nanoparticles using an agar–agar solution illuminated by light from a xenon lamp, followed by irradiation by ultrashort laser pulses. Spherical nanoparticles of ∽100nm were created by the xenon lamp illumination, and after the ultrashort pulses irradiation their sizes were reduced to under 10nm. Bideionized water was used as solvent and surfactants or reducing agents were substituted by agar–agar and light, characterizing the process as a ``green'' synthesis, a completely inoffensive procedure for the environment. The xenon light was used to reduce silver ions (Ag+) into metallic silver (Ag0), and the laser irradiation was important to decrease the nanoparticles diameter. The average particles size, size distribution, morphology, and structure were determined by dynamic light scattering (DLS), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX) and UV/visible absorption spectrophotometry.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2013.01.061