Synthesis of Ni Nanoparticles by Pulsed Laser Ablation Method in Liquid Phase

Ganjali, Monireh; Vahdatkhah, Parisa; Marashi, Seyed Mohammad Bagher

doi:10.1016/j.mspro.2015.11.127

Cited by 36 publications

(19 citation statements)

References 17 publications

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“…In the SERS effect, the strong localization of the electromagnetic field associated with the collective excitation waves, usually called plasmons, of the electrons localized at the nanostructured surface of metals with high optical reflectivity, such as silver, gold, and copper, allows obtaining enhancements of several orders of magnitude (usually up to 10 7 factors) for the Raman response of the adsorbed molecules. In addition to this mechanism, also a chemical enhancement contribution, which usually provides Raman enhancement factors up to 10 2 , can be effective, due to the perturbation of the molecular polarizability because of the formation of chemical complexes of the molecules with the active sites of the metallic surface. Hence, SERS spectroscopy allows identifying, at trace level, reactants, products, or byproducts of reactions occurring where they take place, on the surface of the metal nanoparticles.…”

Section: ■ Introductionmentioning

confidence: 99%

Magneto-Plasmonic Colloidal Nanoparticles Obtained by Laser Ablation of Nickel and Silver Targets in Water

et al. 2017

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Stable magneto-plasmonic nanoparticles in colloidal suspensions are fabricated by two-step nanosecondpulsed laser ablation of nickel and silver targets in pure water and characterized by UV−visible absorption, Raman, X-ray photoelectron spectroscopic, and magnetic measurements, along with high-resolution electron microscopy analysis. These systems are constituted by a low-crystallinity matrix of ferromagnetic nickel hydroxide, where nickel oxide nanocrystals are embedded, with silver nanoparticles intimately linked to them. The surface enhanced Raman scattering activity is assessed by adsorption of adenine as probe ligand. Spectroscopic investigation and density functional theory calculations revealed that adenine is linked to nickel oxide, while nanosilver essentially plays the role of ensuring the Raman enhancement for the adsorbed organic ligand. Both magnetic and plasmonic properties allow using these nanostructured bimetallic platforms as catalysts in chemical reactions or nanosensors in biomedicine as well as in environmental research.

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Section: ■ Introductionmentioning

confidence: 99%

Magneto-Plasmonic Colloidal Nanoparticles Obtained by Laser Ablation of Nickel and Silver Targets in Water

et al. 2017

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“…61, No. 2, pp: 341-350 243 material micro-processing, including nanomaterials and nanostructures synthesis [2]. Laser-assisted formation of nanoparticles is the result of a laser beam bump on a target and the subsequent removal of material from the target surface, promoted by the liquid enclosed by vapor.…”

Section: Abbas and Abbasmentioning

confidence: 99%

“…The medium around the target, which is liquid under normal conditions, departs to the overheated gaseous state. Compared to other methods, typically chemical methods, PLA in liquid is a simple and "green" technical method that normally acts in water or organic liquids under ambient conditions [2][3][4].…”

Section: Abbas and Abbasmentioning

confidence: 99%

Influence of Magnetic Field on Silver Nanoparticles Synthesized by Laser Ablation

Abbas

Adnan

2020

eijs

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Laser ablation of a silver target immersed in distilled water using Nd:YAG laser with a fundamental wavelength of 1064nm was carried out to fabricate silver nanoparticles (Ag NPs) with different laser energy in the presence and absence of magnetic field. UV-Visible spectrum showed that the nanoparticles are almost spherical in shape. The number of Ag NPs increased by increasing laser energy while their particle size was reduced by increasing laser energy without magnetic field. In the presence of magnetic field, the size of Ag NPs increased slightly by increasing laser energy. According to AFM results, the presence of magnetic field did not affect the average diameter of Ag NPs. The presence of a magnetic field causes a change in grain size of Ag NPs with increasing laser energy. While XRD data illustrated that the magnetic field causes an increase in the crystallite size of Ag NPs.

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“…Several chemical methods have been used for the synthesis of Zn-Fe nanoparticles, including the hydrothermal method [11], precipitation method [12], and combustion method [13], but the methods require complicated procedures and require chemicals as surfactants. Furthermore, this causes the nanoparticles produced to have low purity so that it is not appropriate to be applied in the health field.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Zn-Fe nanoparticles using pulse laser ablation as a contrast agent in magnetic resonance imaging

2019

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Synthesis of zinc oxide nanoparticles, iron oxide nanoparticles and Zn-Fe nanoparticles using pulse laser ablation method has been conducted. Experimentally, a pulse Nd:YAG laser (1064 nm, 7 ns, 35 mJ) was directed and focused on a metal plates of pure Zn and Fe, which are placed in the liquid medium of polyvinyl pyrrolidone (PVP). The PVP functions as a stabilizer agent. The results show that the produced nanoparticles have a spherical shape with an averaged diameter of Zn-Fe nanoparticles of 13 nm. FTIR and XRD test results of Zn-Fe nanoparticles show characteristics of Zn-Fe compounds. The examination of Zn-Fe nanoparticles as MRI contrast agents was carried out by varying the concentration of nanoparticles. Cenh calculation results showed the highest contrast enhancement occurred at a concentration of 1.25 mM with a value of 64.26% for T1 weighted images, and 81.52% for T2 weighted images. The SNR calculation results show the highest value at a concentration of 1.25 mM of 70.52 for T1 weighted images. The highest SNR value in the T2 weighted image at a concentration of 0.156 mM of 165.09.

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Synthesis of Ni Nanoparticles by Pulsed Laser Ablation Method in Liquid Phase

Cited by 36 publications

References 17 publications

Magneto-Plasmonic Colloidal Nanoparticles Obtained by Laser Ablation of Nickel and Silver Targets in Water

Magneto-Plasmonic Colloidal Nanoparticles Obtained by Laser Ablation of Nickel and Silver Targets in Water

Influence of Magnetic Field on Silver Nanoparticles Synthesized by Laser Ablation

Synthesis of Zn-Fe nanoparticles using pulse laser ablation as a contrast agent in magnetic resonance imaging

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