Synthesis of a complex nanostructure of CuO via a coupled chemical route

Sabeeh, Sabah H.; Hussein, Hashim A.; Judran, Hadia Kadhim

doi:10.1088/2053-1591/3/12/125025

Cited by 10 publications

(5 citation statements)

References 30 publications

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“…The surfactant SDS [CH 3 (CH 2 ) 11 OSO 3 Na] acts as a catalyst, preventing any fast reactions in the solution. In addition, it acts as a dispersion factor of the formed particles [72].…”

Section: The Structural Studiesmentioning

confidence: 99%

A High Thermal Conductivity of MgO-H2O Nanofluid Prepared by Two-Step Technique

et al. 2022

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In this paper, the main goal is to study the impact of nanopowder volume concentration and ultrasonication treatment time on the stability and thermophysical properties of MgO-DW nanofluid at room temperature. The co-precipitation method was utilized to prepare pure MgO nanoparticles with an average particle size of 33 nm. The prepared MgO nanopowder was characterized by using XRD, SEM, and EDX analyses. Then, MgO-DW nanofluid was obtained with different volume concentrations (i.e., 0.05, 0.1, 0.15, 0.2, and 0.25 vol.%) and different ultrasonication time periods (i.e., 45, 90, 135, and 180 min) by using a novel two-step technique. With volume concentration and ultrasonication time of 0.15 vol.% and 180 min, respectively, good stability was achieved, according to the zeta potential analysis. With increasing volume concentration and ultrasonication time period of the nanofluid samples, the thermal conductivity measurements showed significant increases. As a result, the maximum enhancement was found to be 25.08% at a concentration ratio of 0.25 vol.% and agitation time of 180 min. Dynamic viscosity measurements revealed two contrasting trends with volume concentration and ultrasonication time. The lowest value of relative viscosity was gained by 0.05 vol.% MgO-DW nanofluid. The chemical and physical interactions between MgO nanoparticles and DW molecules play an important function in determining the thermal conductivity and dynamic viscosity of MgO-DW nanofluid. These findings exhibit that MgO-DW nanofluid has the potential to be used as an advanced heat transfer fluid in cooling systems and heat exchangers.

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“…The surfactant SDS [CH 3 (CH 2 ) 11 OSO 3 Na] acts as a catalyst, preventing any fast reactions in the solution. In addition, it acts as a dispersion factor of the formed particles [72].…”

Section: The Structural Studiesmentioning

confidence: 99%

A High Thermal Conductivity of MgO-H2O Nanofluid Prepared by Two-Step Technique

et al. 2022

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“…Over the tested lower concentration range of NPs, there were more deficient effects on RBCs, causing cell membrane disintegration [44,45], and this impact was similar to that of the positive control These findings showed that NPs ranged from 20 to 200 µg/mL. According to the bilayer couple theory, NPs caused red blood cells to morphologically change from their typical discoid form to schistocytes in previous studies [38]. Foreign substances cause erythrocytes to shift s hape owing to the unequal expansion of the red cell membrane's two monolayers.…”

Section: Hemocompatibility Assaymentioning

confidence: 69%

“…The initial generation of nanoparticles from high-intensity laser pulses striking a silver target produces big particles. The contact zone reaches its boiling point, resulting in an explosion that releases nanodroplets and ionized materials onto the substrate [38]. As ionized matter nucleates and grows, these nanodroplets can solidify on the medium and form spherical micrometric and submicrometric particles, which appear to develop from the aggregation of fine nanoparticles [7,39,40].…”

Section: Fesem Imaging Of Ag Npsmentioning

confidence: 99%

“…while the energy dispersive spectrometer is shown in Figure 7 (c), CTAB also contained some aggregated nanoparticles, this is a common side effect of laser ablation due to the nanoparticle creation approach. FESEM images show that laser-ablated nanostructures have a spherical form [17,38]. As a result, CTAB surfactant was used as a nanoparticle stabilizing agent, protecting them against aggregation and other external influences [39].…”

Section: Fesem Imaging Of Ag Npsmentioning

confidence: 99%

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Fabrication of Silver Nanoparticles in Aqueous Solution by Laser Technique and Study of Their Hemocompatibility and Antibacterial Effects Against Dental Decay Bacteria

Abbas¹,

Haleem²,

Kadhima³

2023

ETJ

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“…When high-intensity laser pulses contact a copper target, the interaction zone's temperature rises to its boiling point, causing an explosion in which nanodroplets (clusters of free atoms) are blasted from the target onto the substrate surface. These nanodroplets can solidify on the substrate and form spherical micrometric and submicrometric particles, which seem to be formed as a result of fine nanoparticle aggregation while ionized matter nucleates and grows [31,32]. The EDS examination indicates that even the micrometric particles are copper or copper oxide, as shown in Figs.…”

Section: Fesem Imagingmentioning

confidence: 96%

The Antibacterial Activities of Copper Oxide Nanoparticles Synthesized Using Laser Ablation in Different Surfactants against Streptococcus mutans

Abbas¹,

Kadhim²,

Haleem³

2023

Journal of Renewable Materials

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Copper oxide nanoparticles (CuO NPs) were synthesised with laser ablation of a copper sheet immersed in deionized water (DW), cetrimonium bromide (CTAB), and sodium dodecyl sulphate (SDS), respectively. The target was irradiated with a pulsed Nd: YAG laser at 1064 nm, 600 mJ, a pulse duration of 10 ns, and a repetition rate of 5 Hz. The CuO NPs colloidal were analyzed using UV-Vis spectroscopy, the Fourier transform infrared (FTIR) spectrometer, zeta potential (ZP), X-ray diffraction (XRD), transmission electron microscope (TEM) and field emission scanning electron microscopy (FESEM). The absorption spectra of CuO NPs colloidal showed peaks at 214, 215 and 220 nm and low-intensity peaks at 645, 650 and 680 nm for SDS, CTAB and DW, respectively. CuO NPs' colloidal results are (−21.6, 1.2, and 80 mV) for negatively, neutrally, and positively charged SDS, DW, and CTAB, respectively. The XRD pattern of the NPs revealed the presence of CuO phase planes (110) ( 111), (20-2) and (11-1). The TEM images revealed nearly spherical NPs, with sizes ranging from 10-90, 10-50, and 10-210 nm for CuO NPs mixed with DW, SDS and CTAB, respectively. FESEM images of all the synthesized samples illustrate the formation of spherical nanostructure and large particles are observable. The CuO NPs were tested for antibacterial activity against Streptococcus mutans by using the well diffusion method. In this method, CuO NPs prepared in DW at a concentration of 200 μg/mL showed a greater inhibition zone against Streptococcus mutans.

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Synthesis of a complex nanostructure of CuO via a coupled chemical route

Cited by 10 publications

References 30 publications

A High Thermal Conductivity of MgO-H2O Nanofluid Prepared by Two-Step Technique

A High Thermal Conductivity of MgO-H2O Nanofluid Prepared by Two-Step Technique

Fabrication of Silver Nanoparticles in Aqueous Solution by Laser Technique and Study of Their Hemocompatibility and Antibacterial Effects Against Dental Decay Bacteria

The Antibacterial Activities of Copper Oxide Nanoparticles Synthesized Using Laser Ablation in Different Surfactants against Streptococcus mutans

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