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FACILE SYNTHESIS OF CuO NANOPARTICLES BY HYDROTHERMAL METHOD AND THEIR APPLICATION ON ANTIBACTERIAL ACTIVITY V. Maria Vinosel, A. Persis Amaliya, S. Blessi, S. Pauline* Department of Physics, Loyola College, University of Madras, Chennai – 34, India *Corresponding author: paulantovero@yahoo.
Experimental Apparatus and Materials. The experimental apparatus for microplasma electrochemical synthesis of Cu 2 O nanoparticles is shown in Figure 1.A stainless steel tube (0.7 mm inside diameter, 8 cm length) was positioned 3 cm away from the copper electrode (1 cm width, 3 cm length, immersion area is 1 cm 2) with a gap of 2 mm between the tube end and the liquid surface.
morphology. There are various methods to synthesize the CuO nanoparticles such as hydrothermal method [2], spray pyrolysis [3], thermal decomposition [4], electrochemical method [5], and microwave irradiation [6], sonochemical [7]. In the present study, Sol-gel method is used for
Herein, copper nanoparticles were synthesized using electrochemical method at pH 5, 6.5, 9.5 and 12.5 (coded as Cu5, Cu6.5, Cu9.5 and Cu12.5, respectively). Copper was used as electrode whereas 0.15 M oxalic acid in aqueous solution was used as an electrolyte. Effect of pH of the electrolyte solution on the morphological, structural and textural properties of prepared copper nonoparticles was ...
Figure 3(a-d) are SEM images illustrating the morphologies of CuO-nanoparticles prepared with different precursors via the precipitation method. As-prepared CuO precipitations using either Cu(NO3 )2 or CuCl2 are in good dispersion and found to be short nanorod-like structure.
Chromium oxide nanoparticles were synthesized by the reduction of potassium dichromate solution with Mukia Maderaspatana plant extract. In electrochemical methods, Cr2O3 nanoparticles were synthesized by two ways, using platinum (Pt) electrodes and K2Cr2O7 solution with H2SO4 as medium in the first case. And chromium doped platinum electrode (Pt/Cr) in presence of NaHCO3 solution in .
S. Likhittaphon et al., "Effect of CuO/ZnO catalyst preparation condition on alcohol-assisted Synthesis of ZnO/CuO composite by the electrochemical method in the acetat acid solution (Adrian Nur ...
Chromium oxide nanoparticles were synthesized by the reduction of potassium dichromate solution with Mukia Made- raspatana plant extract. In electrochemical methods, Cr2O3 nanoparticles were synthesized by two ways, using platinum (Pt) electrodes and K2Cr2O7 solution with H2SO4 as medium in the first case. And chromium doped platinum electrode
Jul 10, 2012· Some methods for the preparation of nanocrystalline CuO have been reported such as the sonochemical method,14 sol-gel technique,15 one-step solid state reaction method at room temperature,16 electrochemical method,17 and thermal decomposition of precursors.18 Copper can also be used as an antimicrobial agent, and CuO nanoparticles have been ...
CONCLUSIONS reduction method is easiest, cheapest, require less time and We have demonstrated the efficiency of high purity of nanoparticles are obtained. electrochemical reduction method for the synthesis of spherical shaped copper (II) oxide nanoparticles.
Electrochemical reactions occurring during Cu nanoparticles synthesis Various chemical reactions occur in the electrolysis cell during preparation of copper nanoparticles by electrochemical method.
by electrochemical method [34]. Also, CuO nanoparticles are synthesised using Cu as sacial anode and steel as cathode [35,36] and Cu as anode and cathode [37] in different electrolytes. In this study, we focus on the bulk synthesis of CuO nanoparticles by a hybrid electrochemical–thermal route without using any templates or surfactants.
Nov 15, 2018· In this regard, we have prepared copper oxide nanoparticle (CuO NPs) decorated graphene/β-cyclodextrin (GR-β-CD) composites using a simple electrochemical methodology, where the CuO NPs are electrodeposited on GR-β-CD composite modified electrodes. A stable GR-β-CD composite was prepared by sonication of GR in β-CD aqueous solution.
Synthesis and optical characterization of copper oxide nanoparticles Amrut. S. Lanje 1*, ... (CuO) nanoparticles are synthesized by aqueous precipitation method using ... electrochemical method [15], thermal decomposition of precursors [16] and co-implantation of metal and oxygen ions [17] and ...
Synthesis and characterization of CuO nanoparticles by aqueous precipitation method D.B. Pal 1, D. D. Giri* 1, Manda Bhargav, 1 Pardeep Singh 2, P. K. Mishra 1
Sep 21, 2008· The article deals with a novel electrochemical method of preparing long-lived silver nanoparticles suspended in aqueous solution as well as silver powders. The method does not involve the use of any chemical stabilising agents.
Synthesis and characterization of copper nanoparticles by using electrochemical method S. L. Kadam Abstract - In the present work copper nanoparticles were prepared by electrochemical method. Copper sulphate and distilled water were used initially to prepare nanoparticles.
In the present study, ZnO.CuO nanocomposites were prepared by electrochemical method where Zn and Cu electrodes played key role as anode, instead of using different chemical compounds or chemical reactions, etc. Synthesis of ZnO/CuO nanocomposite by electrochemical method, using Cu and Zn electrode together as anode is a completely new and ...
Synthesis and characterization of ZnO/CuO nanocomposite by electrochemical method Article in Materials Science in Semiconductor Processing 57 · January .
Hydrothermal synthesis of CuO nanoparticles under near-critical and supercritical conditions was investigated from two different standpoints in the current study. The first standpoint was optimization of "yield", "purity", and "size of the nanoparticles" that were optimized at T = 500 °C, time = 2 h, [Cu(NO3)2] = 0.1 mol dm−3, and pH 3.
Feb 28, 2013· Methods. The CuO nanoparticles were synthesized by a colloid-thermal synthesis process. The mixture contained various concentrations of CuCl 2 • 2H 2 O (1 mM, 2 mM, and 3 mM) and gum karaya (10 mg/mL) and was kept at 75°C at 250 rpm for 1 hour in an orbital shaker. The synthesized CuO was purified and dried to obtain different sizes of the CuO nanoparticles.
Synthesis of Copper Oxide Nanoparticles by a Novel Method and its Application 85 for about 20 mins in a magnetic stirrer at room temperature. After stirring, it was filtered using watman filter paper no.4 and followed by centrifuged to settle down the unwanted solids. Extract was taken up by using a syringe to avoid the solid residues.
CuO nanoparticles was investigated by SEM and TEM images as shown in Fig. 2 and 3. From obtained images, we can observe a large quantity of uniform nanoparticles (NPs) with an average particle size of 40-60 nm, indicating that our synthesis process is an easy method for the preparation of CuO nanoparticles.
In this paper, CuO nanoparticles were synthesized by simple aqueous precipitation method using copper foils, nitric acid and caustic soda. The aim of the present work is to investigate the effect of the calcination temperature on the crystal structure and the morphology of the nanoparticles by characterizing X-ray diffraction (XRD) and scanning ...
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