Parametric study of cost-effective synthesis of crystalline copper nanoparticles and their crystallographic characterization

Vaseem, Mohammad; Lee, Kil Mok; Kim, Dae Young; Hahn, Yoon‐Bong

doi:10.1016/j.matchemphys.2010.11.007

Cited by 50 publications

(18 citation statements)

References 30 publications

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“…These results are in good agreement with the observations of Gou and Murphy to the formation of copper nanocubes [1]. The presence of triangular nanoparticles is best explained by previously reported result [35], in which authors believed that truncation (may be favored by capping of surfactant on one of the edges) of the tetrahedral nuclei happened in {111} surface and then twined by reflection at this surface resulted in bitetrahedral precursor nucleus. This nucleus possessed the required three-fold symmetry consisting three active sites for the growth to maintain three-fold symmetry in final structure.…”

Section: Stability Of Copper Hydrosolssupporting

confidence: 92%

Cu nanoparticles: synthesis, crystallographic characterization, and stability

et al. 2015

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Synthesis, crystallographic characterization, and time evaluation morphology of stable copper nanoparticles (CuNPs) have been reported for the first time at room temperature without the protection of any inert gas in presence of cetyltrimethylammonium bromide (CTABr). The morphology and structure determination were determined by using the conventional techniques such as UV-vis spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), electron diffraction (EDX) patterns, thermogravimetric analysis (TGA), and X-ray diffraction (XRD). Reaction time has marked influence on the size, shape, and the size distribution of CuNPs. From the TEM analysis, it was found that the initially, quantum dots, nanorods and some irregular particles were formed. As the reaction time increases, triangular nanoplates along with nanorods were formed. The optical band gap and width of the band tail of the Cu nanostructural were estimated by using the absorption spectrum fitting method. The work reported in this paper would be helpful for the large-scale production of CuNPs at room temperature.

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Section: Stability Of Copper Hydrosolssupporting

confidence: 92%

Cu nanoparticles: synthesis, crystallographic characterization, and stability

et al. 2015

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“…The SPR band observed at 569 nm shows the completely reduced (rich red) colloidal sol as depicted in Figure 1(a). The absorption spectra have been simulated for spherical copper particles by various earlier reports [30,46,47]. As our absorption spectrum is in close resemblance, we conclude that copper nanoparticles were formed in this study.…”

Section: Resultssupporting

confidence: 72%

Catalytic Reductive Degradation of Methyl Orange Using Air Resilient Copper Nanostructures

Soomro

Nafady

Sirajuddin

et al. 2015

Journal of Nanomaterials

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The study describes the application of oxidation resistant copper nanostructures as an efficient heterogeneous catalyst for the treatment of organic dye containing waste waters. Copper nanostructures were synthesized in an aqueous environment using modified surfactant assisted chemical reduction route. The synthesized nanostructures have been characterized by UV-Vis, Fourier transform infrared spectroscopy FTIR spectroscopy, Atomic force microscopy (AFM), Scanning Electron Microscopy (SEM), and X-ray diffractometry (XRD). These surfactant capped Cu nanostructures have been used as a heterogeneous catalyst for the comparative reductive degradation of methyl orange (MO) in the presence of sodium borohydride (NaBH4) used as a potential reductant. Copper nanoparticles (Cu NPs) were found to be more efficient compared to copper nanorods (Cu NRds) with the degradation reaction obeying pseudofirst order reaction kinetics. Shape dependent catalytic efficiency was further evaluated from activation energy (EA) of reductive degradation reaction. The more efficient Cu NPs were further employed for reductive degradation of real waste water samples containing dyes collected from the drain of different local textile industries situated in Hyderabad region, Pakistan.

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“…2, when the product is prepared at pH # 10, strong diffraction peaks can be seen around diffraction angles 2q of 43. 30 , 50.43 and 74.13 , which correspond to Cu (fcc) 111, 200 and 220 respectively (JCPDS no. 04-0836), 29 and therefore, proves that the identity of the product is indeed copper.…”

Section: The Effect Of Ph On the Structure Of Copper Nanoplatesmentioning

confidence: 99%

The synthesis and tribological characteristics of triangular copper nanoplates as a grease additive

Wang

Guo

et al. 2017

RSC Adv.

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In the present study, triangular copper nanoplates have been prepared with CTAB as the capping reagent and ascorbic acid as the reductant. This study also provides quantitative analyses on the effects of pH and CTAB on the structural characteristics of the nanoplates. When the reaction takes place at a pH ¼ 7 with a CTAB concentration of 0.06 M, the resulting triangular nanoplates appear to have well-defined and identical structures. As an additive for greases, the nanoplates are responsible for the formation of a film deposit at the interface of the friction pair during friction. The effects of which are a 12% drop in the friction coefficient of the grease and an 82.2% drop in wear loss, which, in turn, significantly improve the tribological properties of the lubricant.

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Parametric study of cost-effective synthesis of crystalline copper nanoparticles and their crystallographic characterization

Cited by 50 publications

References 30 publications

Cu nanoparticles: synthesis, crystallographic characterization, and stability

Cu nanoparticles: synthesis, crystallographic characterization, and stability

Catalytic Reductive Degradation of Methyl Orange Using Air Resilient Copper Nanostructures

The synthesis and tribological characteristics of triangular copper nanoplates as a grease additive

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