Nickel flower-like nanostructures composed of nanoplates: one-pot synthesis, stepwise growth mechanism and enhanced ferromagnetic properties

Guan, Jianguo; Liu, Lijun; Xu, Leilei; Sun, Zhigang; Zhang, Yi

doi:10.1039/c0ce00805b

Cited by 69 publications

(53 citation statements)

References 51 publications

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“…The SEM images of as-prepared Bi 2 WO 6 nanoparticles are also shown in Figure 2f. The joint effect of nanoparticles assembly followed by the localized ripening mechanism as well as the hierarchical assembly of nanoplates have been also previously reported for the formation mechanism of flower-like microspheres [27,28]. Owing to the absence of discrete nanoplates according to the SEM images at different reaction times (Figure 2), the former mechanism seems to predominate.…”

Section: Photocatalytic Antibacterial Activity On Bi 2 Wo 6 and Lightsupporting

confidence: 73%

Insights into the Photocatalytic Bacterial Inactivation by Flower-Like Bi2WO6 under Solar or Visible Light, Through in Situ Monitoring and Determination of Reactive Oxygen Species (ROS)

Karbasi

Karimzadeh

Raeissi

et al. 2020

Water

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This study addresses the visible light-induced bacterial inactivation kinetics over a Bi2WO6 synthesized catalyst. The systematic investigation was undertaken with Bi2WO6 prepared by the complexation of Bi with acetic acid (carboxylate) leading to a flower-like morphology. The characterization of the as-prepared Bi2WO6 was carried out by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), specific surface area (SSA), and photoluminescence (PL). Under low intensity solar light (<48 mW/cm2), complete bacterial inactivation was achieved within two hours in the presence of the flower-like Bi2WO6, while under visible light, the synthesized catalyst performed better than commercial TiO2. The in situ interfacial charge transfer and local pH changes between Bi2WO6 and bacteria were monitored during the bacterial inactivation. Furthermore, the reactive oxygen species (ROS) were identified during Escherichia coli inactivation mediated by appropriate scavengers. The ROS tests alongside the morphological characteristics allowed the proposition of the mechanism for bacterial inactivation. Finally, recycling of the catalyst confirmed the stable nature of the catalyst presented in this study.

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Section: Photocatalytic Antibacterial Activity On Bi 2 Wo 6 and Lightsupporting

confidence: 73%

Insights into the Photocatalytic Bacterial Inactivation by Flower-Like Bi2WO6 under Solar or Visible Light, Through in Situ Monitoring and Determination of Reactive Oxygen Species (ROS)

Karbasi

Karimzadeh

Raeissi

et al. 2020

Water

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“…7. Guan et al reported the synthesis of flower-like shaped nickel nanoparticles [30]. Spherical-shaped particles are created when the surface energies of crystal faces are equivalent to one another.…”

Section: Resultsmentioning

confidence: 99%

Facile synthesis of bimetallic Ni-Cu nanoparticles using liquid phase plasma method

Sun¹,

Jung

2016

Korean J. Chem. Eng.

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A liquid phase plasma (LPP) process was used to synthesize of Ni-Cu bimetallic particles in aqueous solution. The bimetallic particles were well separated, and the particle size increased with increasing LPP process duration, causing these bimetallic particles to be well separated as the particle size increased when the LPP process time increased. The earliest stages of LPP formed dendrite-shaped nanoparticles, while spherical particles were generated in the later stages. While spherical Ni-Cu bimetallic nanoparticles were mostly observed in the initial stage, flower-like shaped Ni-Cu bimetallic nanoparticles were mostly observed after longer durations of plasma treatment. The solution pH decreased with increasing LPP process time.

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“…It is confirmed that NaOH has two meaningful roles during the polyol reduction process. 23,26 On the one hand, the reducing ability of polyol can be enhanced with increasing alkalinity, thus it can accelerate the reduction of metal ions. 27 On the other hand, high NaOH concentration can decrease Ni 21 concentration in the solution and subsequently slow down the reduction reaction.…”

Section: A Structural and Morphological Characterizationmentioning

confidence: 99%

“…21,22 In liquid chemistry reaction systems, solvent plays a crucial role in determining the morphology of final products. 23,24 In this work, amounts of water are introduced in the polyol reduction system. It is revealed that the volume ratios of glycerol to water have a great effect on the morphology of the obtained products, while the total of amount of solvents is kept at 60 mL.…”

Section: A Structural and Morphological Characterizationmentioning

confidence: 99%

Solvothermal synthesis and electromagnetic absorption properties of pyramidal Ni superstructures

et al. 2014

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The submicrometer Ni cones have been successfully prepared through a simple solvothermal method in glycerol. The as-prepared products were extensively characterized by x-ray diffraction, field emission scanning electron microscopy, energy-dispersive x-ray spectroscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The effects of the volume ratios of glycerol to water, and the concentration of alkali on morphologies of Ni samples were investigated. The electromagnetic wave absorption properties of Ni cones were evaluated based on the relative complex permeability (l r ) and permittivity (e r ). A minimum reflection loss (RL) of À41.6 dB was observed at 4.7 GHz with the thickness of 3.8 mm and the RL values below À10 dB were obtained in the range of 3.9-15.0 GHz with the corresponding thickness of 1.8-3.8 mm. The excellent wave absorption properties of the obtained products are due to the synergic effect of dielectric loss and magnetic loss, geometry effect and unique morphology.

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Nickel flower-like nanostructures composed of nanoplates: one-pot synthesis, stepwise growth mechanism and enhanced ferromagnetic properties

Cited by 69 publications

References 51 publications

Insights into the Photocatalytic Bacterial Inactivation by Flower-Like Bi2WO6 under Solar or Visible Light, Through in Situ Monitoring and Determination of Reactive Oxygen Species (ROS)

Insights into the Photocatalytic Bacterial Inactivation by Flower-Like Bi2WO6 under Solar or Visible Light, Through in Situ Monitoring and Determination of Reactive Oxygen Species (ROS)

Facile synthesis of bimetallic Ni-Cu nanoparticles using liquid phase plasma method

Solvothermal synthesis and electromagnetic absorption properties of pyramidal Ni superstructures

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