EFFECT OF LASER WAVELENGTH AND ABLATION TIME ON PULSED LASER ABLATION SYNTHESIS OF AL NANOPARTICLES IN ETHANOL

Baladi, Arash; Sarraf-Mamoory, Rasoul

doi:10.1142/s2010194512001845

Cited by 20 publications

(13 citation statements)

References 24 publications

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“…Secondly the plasma, containing vapor of target atoms expands adiabatically, this leads to cool of the plume region then form nanoparticles clusters. Finally after plasma extinguishing the formed nanoparticles clusters encounter and interact with the solvent and surfactant molecules in the surrounding solution, typically all these steps take place and nanoparticles are synthesized about a few microseconds [6,7].…”

Section: Introductionmentioning

confidence: 99%

Study the Effect of Different Liquid Media on the Synthesis of Alumina (Al2O3) Nanoparticle by Pulsed Laser Ablation Technique

Al-Nassar¹,

Adel²,

Mahdi³

2015

mst

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This work was devoted for production of alumina (Al 2 O 3) nanoparticles via PLAL technique from a solid alumina target immersed in different solutions Distilled Water (D.W) as well as in ethanol in order to study the effect of these different solutions on the optical properties and structure of Al 2 O 3 nanoparticles. The controllability of particle size and size distribution is shown in this paper to be dependent upon the type of media and it proved that the peak absorption spectrum of samples produced in ethanol is lower than that produced in water. Thus it implies that the ablation efficiency in ethanol is lower, but in the same time it ensures that its oxides are not formed in ethanol due to prohibition of ethanol surrounding media form oxidation. The produced NPs were characterized via many tests such as UV-visible (UV-Vis.) and Atomic Force Microscope (AFM).

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Section: Introductionmentioning

confidence: 99%

Study the Effect of Different Liquid Media on the Synthesis of Alumina (Al2O3) Nanoparticle by Pulsed Laser Ablation Technique

Al-Nassar¹,

Adel²,

Mahdi³

2015

mst

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“…From the images, it is seen that particle size estimation of 11 to 26 nm and spherical in shape. Also, the same figure shows particle agglomeration due to Ostwald ripening phenomena and the electrostatic attractive force between NPs owing to the electric double layer on NPs surfaces [14,32].…”

Section: Resultsmentioning

confidence: 83%

Antibacterial Activity of TiO2 Nanoparticles Prepared by One-Step Laser Ablation in Liquid

Khashan

Sulaiman

Abdulameer³

et al. 2021

Applied Sciences

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Laser ablation in liquid was utilized to prepare a TiO2 NP suspension in in deionized distilled water using Q-switch Nd: YAG laser at various laser energies and ablation times. The samples were characterized using UV–visible absorption spectra obtained with a UV–visible spectrophotometer (UV-Vis,) Fourier transform infrared (FTIR), X-ray diffraction (XRD), and transmission electron microscope (TEM). While, UV-Vis spectra showed the characteristic band-to-band absorption peak of TiO2 NPs in the UV range. FTIR analysis showed the existence of O-Ti-O bond. XRD patterns indicated the presence of (101) and (112) plane crystalline phases of TiO2. TEM images showed a spherical-like structure of TiO2 NPs with various size distributions depending on the ablation period. It was also found that there is a relationship between laser ablation time and TiO2 NP size distribution, where longer ablation times led to the smaller size distribution. The antibacterial activity of TiO2 NPs was evaluated with different species of bacteria such as Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, and Staphylococcus aureus, using the liquid approach. The optimum activity of TiO2 NPs is found to be against E. coli at 1000 μg mL−1. Furthermore, adding, TiO2 NPs (1000 μg mL−1) in the presence of amoxicillin has a synergic effect on E. coli and S. aureus growth, as measured by the well diffusion method. However, both E. coli (11.6 ± 0.57mm) and S. aureus (13.3 ± 0.57mm) were inhibited by this process.

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“…The presence of ZnO nanoparticles in ultra-pure water was justified by both the carter creates at the target surface and the color change of the solution right after the laser ablation. Nanoparticle size and concentration, will lead to variation in the color of zinc oxide nanoparticle solution in water [15]. As shown in Figure 1the color of solution turns gray right after the laser ablation, depending on the number of pulses color became darker.…”

Section: Liquid-phase Laser Ablation Of Zinc Targetmentioning

confidence: 99%

ZnO Nanoparticle Synthesis using Nd, Yag Laser for Increasing Hydrogen Fuel Cell Performance

Majeed¹,

Tjprc²

2018

IJMPERD

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In this work, the hydrogen evolution reactions on stainless steel electrodes in ultra-pure water (UPW) and water-based Zinc oxide colloid solutions have been investigated. Ultra-pure water with electrical conductivity (0.45µs) was used to synthesize ZnOnano colloidal using pulsed laser ablation of zinc metal in water. All experiments were performed using a Q-switched Nd-YAG laser operating at fundamental mode 1064nm with 9ns pulse duration, at fixed laser output energy (750mJ). Different number of pulses (250, 500, 750 and 1000) was applied with the aim to affect the concentration of synthesized ZnO colloidal. AFM micrograph of nano-colloidal was revealed that the synthesized nanoparticles have a spherical shape with average diameters about25nm. The pH and electrical conductivity values of all solutions were measured simultaneously at room temperature. Hydrogen generator-fuel cell driven by 30 volts as input source is developed with ZnO nanocolloidal. PH variation is within range 7-8.1 and electrical conductivity variation is 0.45-15.8 µs/cm. The optimum ZnO NPs concentration of pH 8.1 and electrical conductivity 15.8µs/cm has been observed, which gives the maximum H 2 /O 2 output of 1.2 mL/s.

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EFFECT OF LASER WAVELENGTH AND ABLATION TIME ON PULSED LASER ABLATION SYNTHESIS OF AL NANOPARTICLES IN ETHANOL

Cited by 20 publications

References 24 publications

Study the Effect of Different Liquid Media on the Synthesis of Alumina (Al<sub>2</sub>O<sub>3</sub>) Nanoparticle by Pulsed Laser Ablation Technique

Study the Effect of Different Liquid Media on the Synthesis of Alumina (Al<sub>2</sub>O<sub>3</sub>) Nanoparticle by Pulsed Laser Ablation Technique

Antibacterial Activity of TiO2 Nanoparticles Prepared by One-Step Laser Ablation in Liquid

ZnO Nanoparticle Synthesis using Nd, Yag Laser for Increasing Hydrogen Fuel Cell Performance

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