Effects of ultrasound radiation on the synthesis of laser ablated gold nanoparticles

Dadras, Siamak; Jafarkhani, Parvaneh; Torkamany, M.J.; Sabbaghzadeh, J.

doi:10.1088/0022-3727/42/2/025405

Cited by 18 publications

(8 citation statements)

References 30 publications

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“…Colloids were almost transparent in the absence of ultrasonic excitation, whereas they were light brown in the presence of the ultrasonic field. This result suggests a greater yield production of carbon nanostructures with the ultrasonic field in agreement with previous reports [21]. To guarantee that the obtained 2D-nanostructures were not produced by mechanical exfoliation of the graphite target, it was treated in the ultrasonic field for 30 min and subsequently a drop of the solution was observed by TEM.…”

Section: Resultssupporting

confidence: 91%

“…The combination of laser ablation in liquids with an ultrasound field has already been investigated for dispersion purposes [19], to study the effects of the ultrasonic excitation on the structure of laser-ablated nanoparticles [20] and it has been reported to lead to an enhancement of the production rate of the nanoparticles [21]. In a previous work, we have reported that ultrasound not only generates dispersion and increases the yield in the nanoparticle formation but also produces important changes in the morphology of the nanostructures producing nanosheets in colloidal suspensions [22].…”

Section: Introductionmentioning

confidence: 99%

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Two-dimensional carbon nanostructures obtained by laser ablation in liquid: effect of an ultrasonic field

et al. 2018

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The ablation of a carbon target immersed in deionized water, in absence and in presence of ultrasonic waves is reported, and the differences investigated. The obtained nanostructures are characterized by transmission electron microscopy, Raman spectroscopy and photoluminescence. Transmission electron images reveal that the produced carbon nanostructures, with and without ultrasonic excitation, are graphene-like sheets with improved quality in the first case. Samples prepared with ultrasounds show graphene layers with large sizes (several microns) and regular shapes, whereas the samples prepared without ultrasounds show smaller sizes and irregular shapes; additionally, some dispersed quasi-spherical nanoparticles are observed in the samples prepared without ultrasound. Photoluminescence measurements of the obtained nanostructures reveal emission in the blue spectral region.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Two-dimensional carbon nanostructures obtained by laser ablation in liquid: effect of an ultrasonic field

et al. 2018

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“…It is apparent that ultrasound significantly enhanced the plasma emission. A possible explanation for this might be that ultrasound could increase the temperature of the plasma plume and electrons, resulting in an increase in intensity …”

Section: Resultsmentioning

confidence: 99%

“…A possible explanation for this might be that ultrasound could increase the temperature of the plasma plume and electrons, resulting in an increase in intensity. 31…”

Section: Resultsmentioning

confidence: 99%

Ultrasonic-Enhanced Fabrication of Metal Nanoparticles by Laser Ablation in Liquid

Machmudah

Diono

et al. 2020

Ind. Eng. Chem. Res.

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Laser ablation in liquid (LAL) is known to be a promising method for synthesizing metal nanoparticles. In this study, gold and silver nanoparticles were fabricated by ultrasonic-assisted LAL. Gold and silver plates were ablated using a neodymium-doped yttrium aluminum garnet (Nd:YAG) laser, with a wavelength of 532 nm and energy of 26.4 J cm–2, in distilled water in the presence and absence of an ultrasonic field. The fabricated nanoparticle colloidal solution was analyzed with an ultraviolet–visible (UV–vis) spectrometer, a transmission electron microscope (TEM) with energy-dispersive X-ray spectroscopy (EDS), and ζ-potential measurement. The craters on the silver plates were analyzed by a scanning electron microscope (SEM), a laser microscope, and MATLAB to observe their morphology and calculate the volume to obtain the concentration of the fabricated nanoparticle solution. Optical emissions were observed to study the characteristics of the laser. The results showed that ultrasonic-assisted LAL has considerable potential for fabricating superior metal nanoparticles.

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“…A variety of biological, physical, or chemical methods have been explored in the past years in order to create GNPs for usage in electrical, biotechnological, industrial, pharmaceutical, agricultural, or medical sectors [ 17 ]. These methods are used to manufacture gold nanostructures with well-defined compositions, such as colloids, clusters, wires, powders, tubes, rods, and thin films [ 18 ]. Physical and chemical approaches to make GNPs have been used in the past, as shown in Figure 1 .…”

Section: Green Synthesis Of Gold Nanoparticlesmentioning

confidence: 99%

Biologically Derived Gold Nanoparticles and Their Applications

Roy

Pandit

Gacem

et al. 2022

Bioinorganic Chemistry and Applications

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Nanotechnology is a rapidly evolving discipline as it has a wide variety of applications in several fields. They have been synthesized in a variety of ways. Traditional processes such as chemical and physical synthesis have limits, whether in the form of chemical contamination during synthesis operations or in subsequent applications and usage of more energy. Over the last decade, research has focused on establishing easy, nontoxic, clean, cost-effective, and environmentally friendly techniques for nanoparticle production. To achieve this goal, biological synthesis was created to close this gap. Biosynthesis of nanoparticles is a one-step process, and it is ecofriendly in nature. The metabolic activities of biological agents convert dissolved metal ions into nanometals. For biosynthesis of metal nanoparticles, various biological agents like plants, fungus, and bacteria are utilized. In this review paper, the aim is to provide a summary of contemporary research on the biosynthesis of gold nanoparticles and their applications in various domains have been discussed.

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Effects of ultrasound radiation on the synthesis of laser ablated gold nanoparticles

Cited by 18 publications

References 30 publications

Two-dimensional carbon nanostructures obtained by laser ablation in liquid: effect of an ultrasonic field

Two-dimensional carbon nanostructures obtained by laser ablation in liquid: effect of an ultrasonic field

Ultrasonic-Enhanced Fabrication of Metal Nanoparticles by Laser Ablation in Liquid

Biologically Derived Gold Nanoparticles and Their Applications

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