One-Pot, Single Step Green Synthesis of Copper Nanoparticles: SPR Nanoparticles

Surmawar, Nikhil V.; Thakare, Sanjay R.; Khaty, Niraj T.

doi:10.1080/19430892.2011.633478

Cited by 25 publications

(17 citation statements)

References 14 publications

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“…Figure 7 clearly shows that for sample with 0.5% PEG, λ max is obtained around 597 nm, while for samples with 1 and 1.5% PEG concentration, the related λ max values are 585 and 571 nm, respectively. Also, in this study, no surface plasmon peak was observed for PEG-stabilized copper nanoparticles with concentration of 2% and higher, which is due to the formation of nanoparticles too small in scale (smaller than 5 nm), probably [27].…”

Section: 5c Effect Of Concentration Of Polymer Stabilizercontrasting

confidence: 54%

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The use of biodegradable polymers for the stabilization of copper nanoparticles synthesized by chemical reduction method

2017

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Copper nanoparticles were synthesized by a convenient and rapid chemical reduction method in ambient condition using Cu(NO 3) 2 •3H 2 O as a precursor, hydrazine hydrate as reducing agent and deionized water as solvent. The product was characterized by X-ray diffraction (XRD) patterns, field emission scanning electron microscopy, Fourier transform infrared spectroscopy and UV-Vis spectroscopy. However, agglomerated copper nanoparticles were obtained by this chemical reduction method. Hence, the effects of three polymers of polyvinyl pyrrolidone, polyethylene glycol (PEG) and starch as stabilizers on the size and size distribution of Cu nanoparticles were investigated. According to the results, smallest copper nanoparticles (30-50 nm) with a narrow size distribution were obtained using PEG as the stabilizing polymer. Zero-valent copper nanoparticles with high purity were obtained by this method and there was no peak related to the oxidized impurities such as CuO and Cu 2 O in the XRD and UV-Vis studies, both in the presence and in the absence of stabilizer. On the other hand, by this method, zero-valent copper nanoparticles were obtained in the absence of any anti-oxidant agent and any inert gas flow. The effects of synthesis parameters including initial concentration of precursor, polymer concentration and the reaction temperature on the size and size distribution of copper nanoparticles were investigated using the UV-Vis analysis to determine the optimum synthesis conditions.

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Section: 5c Effect Of Concentration Of Polymer Stabilizercontrasting

confidence: 54%

“…Starch, polyethylene glycol (PEG) and polyvinyl pyrrolidone (PVP) are three polymers whose stabilizing behaviour role has been proved [26][27][28]. Starch is the most commonly used carbohydrate consisting of a large number of glucose units linked by glycosidic bonds.…”

Section: Introductionmentioning

confidence: 99%

The use of biodegradable polymers for the stabilization of copper nanoparticles synthesized by chemical reduction method

2017

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“…Copper nanoparticles by a single step were synthesized by Sanjay et.al. 58 , starch was used as a stabilizing agent to copper nanoparticles formed by the reduction of CuCl with Hydrazine hydrate. The average particle size obtained was in the range of 20-70nm as shown in TEM analysis …”

Section: Biological and Green Synthesismentioning

confidence: 99%

“…TEM image of copper nanoparticles stabilized in starch solution (Reprinted with permission from ref 58). …”

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confidence: 99%

Copper conductive inks: synthesis and utilization in flexible electronics

Karthik

et al. 2015

RSC Adv.

163

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Conductive inks are a recent progress in electronics and have a promising future applications in flexible electronics and smart applications. In this review we tried to focus on a particular conductive ink, based on copper nanoparticles. Although wide research is being done all over the world, few complications are yet to be solved with perfection. We tried to focus on some of the complications involved in the synthesis and their various applications in the different fields of science. Conductive inks have promising applications in the present trend of science and technology. The main intention behind this review is to list out some of the best methods to synthesize copper nanoparticles according the category of synthesizing them. We chose copper nanoparticles synthesis and preparation of conductive inks because copper is a very abundant material possessing high conductivity (after silver), it has huge potential to replace expensive conductive inks made of silver, graphene, CNTs etc. The reason behind insisting on copper is also due to its properties such as ductility, malleability, thermal dissipation agent, possess anti microbial nature etc. In this review, we have listed out some of the best methods of synthesizing copper conductive ink and their usage in various printing techniques. Different methods of sintering for obtained conductive patterns are also included.

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“…In recent years, copper (Cu) NP have attracted much attention of researchers because of its application in wound dressings and biocidal properties [3,4] potential industrial use such as gas sensors, catalytic process, high-temperature superconductors, and solar cells [5][6][7]. In literature, the CuNPs are synthesized from vapor deposition [8], electrochemical reduction [9], radiolysis reduction [10], thermal decomposition [11], chemical reduction of Cu metal salt [12], and room temperature synthesis using starch and hydrazine hydrate [13]. In recent, green synthesis of CuNPs was achieved using microorganisms [14], plant extract [15].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Copper Nanoparticle From Passiflora Foetida Leaf Extract and Its Antibacterial Activity

Renganathan

Fatma²,

Kalainila³

et al. 2017

Asian J Pharm Clin Res

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Objective: Development of green nanotechnology is generating interest of researchers toward eco-friendly biosynthesis of nanoparticles (NPs). In this study, biosynthesis of stable copper (Cu) NPs was done using Passiflora foetida leaf extract. Materials and Methods:First, we prepared leaf extract of Passiflora foetida in deionized water. This extract added to 20 mMol of Cupric sulfate solution, and we observed the change in color of the solution from colorless to colored solution; this indicates that there is a formation of CuNPs.Results: These biosynthesized CuNPs were characterized with the help of ultraviolet visible spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The spectroscopic analysis of synthesized CuNPs showed the maximum absorbance at 350 nm indicating the presence of biosynthesized CuNPs in the reaction mixture. Conclusion:It was observed that the P. foetida leaf extract can reduce Cu ions into CuNPs within 8-10 minutes of reaction time. Thus, this method can be used for rapid and eco-friendly biosynthesis of stable CuNPs.

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One-Pot, Single Step Green Synthesis of Copper Nanoparticles: SPR Nanoparticles

Cited by 25 publications

References 14 publications

The use of biodegradable polymers for the stabilization of copper nanoparticles synthesized by chemical reduction method

The use of biodegradable polymers for the stabilization of copper nanoparticles synthesized by chemical reduction method

Copper conductive inks: synthesis and utilization in flexible electronics

Green Synthesis of Copper Nanoparticle From Passiflora Foetida Leaf Extract and Its Antibacterial Activity

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