One-step, solid-state reaction to ZnO nanoparticles in the presence of ionic liquid

Li, Kangfeng; Luo, Hao; Ying, Taokai

doi:10.1016/j.mssp.2011.02.003

Cited by 19 publications

(11 citation statements)

References 37 publications

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“…About 30 min later, 5 mL H 2 O 2 was dropped in the mixture very slowly. After that, the mixed solution was maintained stirring at room temperature for 3 h. The brown precipitate was separated by centrifugation, washed several times with distilled water, and absolute ethanol to remove impurities and recollect the IL [17][18][19]. Finally, the brown product was dried in an oven at 70°C for 12 h.…”

Section: Chemicals and Proceduresmentioning

confidence: 99%

A Green Chemical Synthesis and Characterization of Mn3O4 nanoparticles

Günay

Baykal

Toprak

et al. 2012

J Supercond Nov Magn

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Mn 3 O 4 nanoparticles were synthesized via an ionic liquid (IL) assisted process at room temperature, which is rather difficult to achieve by other techniques. The synthesized product was characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, thermal gravimetry (TG), and vibrating sample magnetometry (VSM). The prepared material showed a high purity, while crystallite size and particle size agree well with each other, 17 ± 2 and 19 ± 3 nm, respectively, revealing nearly single crystalline character of nanoparticles. The product contains 4 wt% of adsorbed water and ionic liquid. This method provides a facile, one-step, and low-cost route for the synthesis of nanostructures of metal oxides. In addition, [BMIM]BF 4 could be collected and reused for subsequent reactions.

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Section: Chemicals and Proceduresmentioning

confidence: 99%

A Green Chemical Synthesis and Characterization of Mn3O4 nanoparticles

Günay

Baykal

Toprak

et al. 2012

J Supercond Nov Magn

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“…The chemical methods have several distinct advantages for the synthesis of nanosized particles owing to mass production, reproducibility, etc . Various chemical methods have been adopted over the past few years to prepare nano‐ and microscaled ZnO particles in various sizes and morphologies, by starting from conventional solid‐state process, precipitation, hydrolysis, pyrolysis, hydrothermal methods, and sol–gel technique . These methods could facilitate the control of size and morphology of the ZnO crystallites by optimizing various parameters such as pH, annealing temperature, reaction medium, the presence of additives, counterion, etc .…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of ZnO Nanoparticles and Its Application in the Degradation of Some Dyes

2015

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A novel ZnO photocatalyst was synthesized by a green method using lemon juice and zinc acetate as precursors, and then the effect of sucrose addition on the initial precursors was investigated. The samples were characterized by field-emission scanning electron microscopy, X-ray diffraction, Fourier transform infrared, UV-visible, and photoluminescence analysis. The result showed that the as-obtained products with the mix of lemon juice (30 mL) and sucrose had a spherical morphology with the mean particle size of about 21.5 nm. The photocatalytic activity of this sample was tested for the degradation of methyl orange, methyl red and methylene blue solutions. The results also revealed the good photocatalytic activity for the degradation of these three organic dyes. Furthermore, as-synthesized sample was used in decolorization processes and the treatment of textile dyes (reactive blue 21).

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“…Among these, Sn-doped ZnO nanomaterials result with a higher optical bandgap (3.42 eV) as well as electrical conductivity (3.25 Â 10 À2 V À1 cm À1 ). [15] Many soft chemical methods [16] have been used to synthesise nanocrystalline ZnO powder, such as, hydrothermal route, [17,18] chemical vapour deposition, [19] solid state reaction method, [20] soluble salt-assisted route, [21] sol-gel synthesis [22], etc. However, in the present study we focus on synthesis of ZnO nanopowders by coprecipitation method.…”

Section: Introductionmentioning

confidence: 99%

Structure–property correlation of pure and Sn-doped ZnO nanocrystalline materials prepared by co-precipitation

Verma

Dwivedi

Das

2013

Journal of Experimental Nanoscience

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The structural, optical and electrical properties of pure and tin (Sn) doped zinc oxide (ZnO) nanocrystalline materials prepared by co-precipitation method have been studied as a function of Sn doping concentration. The phase identification through powder X-ray diffraction methods confirmed that pure and Sn-doped zinc oxide powder have typical hexagonal wurtzite structure (a ¼ 3.407 A and c ¼ 4.592 A ) with slight change in lattice parameters. The surface morphological examination with field emission scanning electron microscopy revealed the fact that the grains are closely and densely packed and pores/voids between the grains decrease with increasing the doping concentration of Sn from 0% to 15%. The energy bandgap of pure ZnO was found to be 3.35 eV from optical absorption spectra obtained by ultraviolet-visible (UV-Vis) absorption spectrophotometer. The variation of energy bandgap and electrical resistivity of Sn-doped ZnO were also determined with tin doping. Upon increasing the Sn dopant concentration from 0 to 15 wt%, the optical bandgaps of ZnO increases from 3.35 to 3.42 eV. The electrical resistivity of Sn-doped ZnO has been decreased at least two orders of magnitude, i.e. from 1263.17 to 28.64 V cm. This decrement in electrical resistivity may be due to the partial substitution of divalent Zn 2þ ions with tetravalent Sn 4þ ions, generating more free electrons for conduction.

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One-step, solid-state reaction to ZnO nanoparticles in the presence of ionic liquid

Cited by 19 publications

References 37 publications

A Green Chemical Synthesis and Characterization of Mn3O4 nanoparticles

A Green Chemical Synthesis and Characterization of Mn3O4 nanoparticles

Green Synthesis of ZnO Nanoparticles and Its Application in the Degradation of Some Dyes

Structure–property correlation of pure and Sn-doped ZnO nanocrystalline materials prepared by co-precipitation

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