Optical and Magnetic Properties of Fe Nanoparticles Fabricated by Femtosecond Laser Ablation in Organic and Inorganic Solvents

Magnetic nanoparticles have attracted much interest due to their broad applications in biomedicine and pollutant remediation. In this work, the optical, magnetic, and structural characteristics of colloids produced by ultrashort pulsed laser ablation of a solid Fe target were studied in four differe...

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Autores principales: Santillán, Jesica María José, Muñetón Arboleda, David, Coral Coral, Diego Fernando, Fernández van Raap, Marcela Beatriz, Muraca, Diego, Schinca, Daniel Carlos, Scaffardi, Lucía Beatriz
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Exactas
Física
Ingeniería
fractals
iron
laser ablation
magnetic properties
nanoparticles
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/106948
https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201601279
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-106948
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Ingeniería
fractals
iron
laser ablation
magnetic properties
nanoparticles
spellingShingle Ciencias Exactas
Física
Ingeniería
fractals
iron
laser ablation
magnetic properties
nanoparticles
Santillán, Jesica María José
Muñetón Arboleda, David
Coral Coral, Diego Fernando
Fernández van Raap, Marcela Beatriz
Muraca, Diego
Schinca, Daniel Carlos
Scaffardi, Lucía Beatriz
Optical and Magnetic Properties of Fe Nanoparticles Fabricated by Femtosecond Laser Ablation in Organic and Inorganic Solvents
topic_facet Ciencias Exactas
Física
Ingeniería
fractals
iron
laser ablation
magnetic properties
nanoparticles
description Magnetic nanoparticles have attracted much interest due to their broad applications in biomedicine and pollutant remediation. In this work, the optical, magnetic, and structural characteristics of colloids produced by ultrashort pulsed laser ablation of a solid Fe target were studied in four different media: HPLC water, an aqueous solution of trisodium citrate, acetone, and ethanol. Optical extinction spectroscopy revealed an absorption band in the UV region for all, in contrast to the results obtained with nanosecond lasers. Micro-Raman spectroscopy showed that the samples are heterogeneous in their composition, with hematite, maghemite, and magnetite nanoparticles in all four solvents. Similar results were obtained by electron diffraction, which also found α-Fe. Magnetic properties were studied by vibrating-sample magnetometry, and showed nanoparticles in the superparamagnetic state. Under certain experimental conditions, submicrometer-sized iron oxide nanoparticles agglomerate into fractal patterns that show self-similar properties. Self-assembled annular structures on the nanometer scale were also observed and are reported for the first time.
format Articulo
Articulo
author Santillán, Jesica María José
Muñetón Arboleda, David
Coral Coral, Diego Fernando
Fernández van Raap, Marcela Beatriz
Muraca, Diego
Schinca, Daniel Carlos
Scaffardi, Lucía Beatriz
author_facet Santillán, Jesica María José
Muñetón Arboleda, David
Coral Coral, Diego Fernando
Fernández van Raap, Marcela Beatriz
Muraca, Diego
Schinca, Daniel Carlos
Scaffardi, Lucía Beatriz
author_sort Santillán, Jesica María José
title Optical and Magnetic Properties of Fe Nanoparticles Fabricated by Femtosecond Laser Ablation in Organic and Inorganic Solvents
title_short Optical and Magnetic Properties of Fe Nanoparticles Fabricated by Femtosecond Laser Ablation in Organic and Inorganic Solvents
title_full Optical and Magnetic Properties of Fe Nanoparticles Fabricated by Femtosecond Laser Ablation in Organic and Inorganic Solvents
title_fullStr Optical and Magnetic Properties of Fe Nanoparticles Fabricated by Femtosecond Laser Ablation in Organic and Inorganic Solvents
title_full_unstemmed Optical and Magnetic Properties of Fe Nanoparticles Fabricated by Femtosecond Laser Ablation in Organic and Inorganic Solvents
title_sort optical and magnetic properties of fe nanoparticles fabricated by femtosecond laser ablation in organic and inorganic solvents
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/106948
https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201601279
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