RT journal article
T1 Study of the physicochemical surface alterations and incubation phenomena induced on iron targets by nanosecond pulsed laser ablation in liquids: Effect on productivity and characteristics of the synthesized nanoscale zero-valent iron (nZVI) particles
A1 Lahoz, Ruth
A1 Naghilou, Aida
A1 Kautek, Wolfgang
A1 Bomati Miguel, Óscar
A2 Física de la Materia Condensada
K1 Nanosecond pulsed laser ablation in liquids
K1 Laser ablation threshold
K1 Incubation effect
K1 Laser induced-chemical surface alteration
K1 Raman spectroscopy
K1 Colloidal nanoscale zero-valent iron particles
AB This work presents a systematic study of the significant role of the surface physicochemical alterations produced during the laser ablation of massive iron disks submerged in different solvents on the generation of colloidal iron nanoparticles. For that purpose, the laser ablation thresholds and the incubation coefficients for various pulse numbers per site and pulse energies have been measured under distilled water (DW) and ethanol (EtOH). After that, a complete physicochemical characterization of these targets indicated higher threshold fluence values for the ablation experiments conducted in EtOH than those performed in DW. The threshold fluence values decreased also with the decrease of the pulse overlap for both solvents, being it much more pronounced in EtOH. In addition, the related incubation coefficient showed that the incubation effect is lower for experiments conducted in DW. The characteristics of the synthesized nZVI particles were also a function of the solvent nature and the pulse overlap: laser ablation in DW leaded to iron oxide nanoparticles, whereas core-shell iron nanoparticles were obtained in EtOH. Moreover, high pulse overlap values lead to chemical alterations, resulting in a decrease of the composition homogeneity and a strong increase of the nanoparticle polydispersity.
PB Elsevier B.V
SN 0169-4332
YR 2020
FD 2020-05-01
LK http://hdl.handle.net/10498/38294
UL http://hdl.handle.net/10498/38294
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026