New approach for preparation of ultrafine Cu particles and shell/core compounds of Cu/CuO and Cu/Cu2O

Zheng, Hongzhi; Liu, X. H.; Yang, Shijian; Wang, X.

doi:10.1007/s10853-005-6530-3

Cited by 5 publications

(4 citation statements)

References 11 publications

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“…It can be seen that the peaks at 2.09 and 1.81 Å in Fig. a correspond to elementary Cu and no impurity is detected by XRD, indicating a pure product . Compared with XRD pattern of LLDPE in Fig.…”

Section: Resultssupporting

confidence: 90%

“…Compared with XRD pattern of LLDPE in Fig. g, characteristic peaks of Cu appear in the XRD pattern of Cu4/LLDPE and no new phase has been found, indicating that Cu4/LLDPE is a simple mixture of the nano‐Cu and LLDPE .…”

Section: Resultsmentioning

confidence: 99%

“…The moment of CuO powder was taken from Muffle furnace, it was carefully spread into 200 mL absolute ethanol. CuO powder with high temperature was instantly reduced by absolute ethanol to Cu . The mixture was filtered and immersed in 3 mol/L H 2 SO 4 solution for 2 h. And then the product was filtered, rinsed with absolute ethanol and dried under vacuum at 50 o C. The obtained red sample was pure nano‐Cu Fig.…”

Section: Methodsmentioning

confidence: 99%

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Preparation of Cu/Dickite/LLDPE nanocomposites and synergistic effect of exfoliated dickite and nano-Cu in LLDPE matrix

Xue

Jiang

2013

Polym. Compos.

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A novel anticorrosion packaging nanocomposite composed of LLDPE (linear low‐density polyethylene), nano‐sized Cu, and exfoliated dickite was prepared via melt mixing combined with melt extruding process. X‐ray diffraction and transmission electron microscopy (TEM) were employed to characterize the resultant nanocomposite. The results showed that most dickite layers were exfoliated and the nano‐Cu particles were distributed uniformly in the polymer matrix. The characteristic properties of the Cu/dickite/LLDPE nanocomposite were investigated using salt spray test, thermogravimetry analysis, mechanical test, and antibacterial test. The salt spray test results showed that exfoliated dickite and nano‐Cu improved the anticorrosion properties of the Cu/dickite/LLDPE nanocomposite in simulated ocean environment, respectively. Furthermore, the coexistence of exfoliated dickite and nano‐Cu in Cu/dickite/LLDPE nanocomposite produced a synergistic effect on enhancing the anticorrosion properties. Additionally, the co‐incorporation of exfoliated dickite and nano‐Cu in LLDPE matrix also improved the thermal‐oxidative stability and mechanical properties of the polymer matrix. The bactericidal properties evaluation showed that the Cu/dickite/LLDPE nanocomposite had better bactericidal ability because of the presence of nano‐Cu in LLDPE matrix. POLYM. COMPOS., 34:1061–1070, 2013. © 2013 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Preparation of Cu/Dickite/LLDPE nanocomposites and synergistic effect of exfoliated dickite and nano-Cu in LLDPE matrix

Xue

Jiang

2013

Polym. Compos.

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“…Cu@Cu 2 O core–shell nanoparticles (NPs) are a type of photocatalysts that possess a stable structure and high surface to volume ratios, which are essential for photocatalytic applications. − Up to now, many methods have been proposed to fabricate Cu@Cu 2 O core–shell NPs, including microwave irradiation, electrochemical methods, solid-state reactions, chemical reduction, and so on. ,− Usually, wet chemical methods are used for preparing Cu@Cu 2 O core–shell NPs, which suffered from two drawbacks. First, the agglomeration tends to occur in the photocatalytic reaction, , which reduces the effective specific surface area and leads to the decrease of photocatalytic efficiency.…”

Section: Introductionmentioning

confidence: 99%

Realization of Tunable Localized Surface Plasmon Resonance of Cu@Cu₂O Core–Shell Nanoparticles by the Pulse Laser Deposition Method

Yin

Zhao

et al. 2019

ACS Omega

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Cu@Cu2O core–shell nanoparticles (NPs) not only possess a stabilized structure but also exhibit better photocatalytic performance as compared to pure Cu2O. Therefore, preparation of Cu@Cu2O core–shell NPs is key toward efficient photocatalysis applications. In this paper, the fabrication of Cu@Cu2O core–shell NPs on single-crystal MgO(100) substrates has been studied systematically by pulse laser deposition. Scanning electron microscopy (SEM) images show that the average diameter of NPs is enlarged from 89.9 to 150.3 nm with the increasing of oxygen pressure. Transmission electron microscopy (TEM) images indicate that the NPs have elongated hexagons and a core–shell structure with a shell thickness of about 10 nm. UV–vis absorption spectra show that the position of the localized surface plasmon resonance (LSPR) peaks shifts from 648 to 858 nm and the full width at half-maximum (fwhm) of the LSPR peaks broadens from 226.7 to 436.5 nm with increasing average diameter of NPs. According to the analysis, the red shift of the LSPR peaks is caused by enlargement of the core diameter; higher fwhm is a result of broadened particle size distribution and the elongated morphology of NPs. Therefore, the width and range of LSPR peaks of the absorption spectrum can be tuned using this method, which is beneficial for enhancing the light absorption and improving the photocatalytic efficiency of Cu@Cu2O core–shell NPs.

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Preparation of Cu/OMMT/LLDPE nanocomposites and synergistic effect study of two different nano materials in polymer matrix

Xue

Xing

et al. 2011

Polym. Bull.

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New approach for preparation of ultrafine Cu particles and shell/core compounds of Cu/CuO and Cu/Cu2O

Cited by 5 publications

References 11 publications

Preparation of Cu/Dickite/LLDPE nanocomposites and synergistic effect of exfoliated dickite and nano-Cu in LLDPE matrix

Preparation of Cu/Dickite/LLDPE nanocomposites and synergistic effect of exfoliated dickite and nano-Cu in LLDPE matrix

Realization of Tunable Localized Surface Plasmon Resonance of Cu@Cu₂O Core–Shell Nanoparticles by the Pulse Laser Deposition Method

Preparation of Cu/OMMT/LLDPE nanocomposites and synergistic effect study of two different nano materials in polymer matrix

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New approach for preparation of ultrafine Cu particles and shell/core compounds of Cu/CuO and Cu/Cu2O

Cited by 5 publications

References 11 publications

Preparation of Cu/Dickite/LLDPE nanocomposites and synergistic effect of exfoliated dickite and nano-Cu in LLDPE matrix

Preparation of Cu/Dickite/LLDPE nanocomposites and synergistic effect of exfoliated dickite and nano-Cu in LLDPE matrix

Realization of Tunable Localized Surface Plasmon Resonance of Cu@Cu2O Core–Shell Nanoparticles by the Pulse Laser Deposition Method

Preparation of Cu/OMMT/LLDPE nanocomposites and synergistic effect study of two different nano materials in polymer matrix

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Realization of Tunable Localized Surface Plasmon Resonance of Cu@Cu₂O Core–Shell Nanoparticles by the Pulse Laser Deposition Method