Preparation and Characterization of Copper Oxide Nanoparticles Through Solid State Thermal Decomposition of an Aqua Nitrato Copper(II) Complex with a Tridentate Schiff-base Ligand as a New Precursor

2018 ◽  
Vol 9 (1) ◽  
pp. 92-100 ◽  
Author(s):  
Niaz Monadi ◽  
Samira Saeednia ◽  
Parvaneh Iranmanesh ◽  
Mehdi H. Ardakani ◽  
Samira Sinaei

Introduction: In this study the synthesis and characterization of copper oxide nanoparticles via solid state thermal decomposition of a recently synthesized aqua nitrato copper(II) complex with a tridentate Schiff-base ligand (1) as a new precursor are reported. Materials & Methods: The copper complexes were obtained by sonochemical and solvothermal process and characterized by Scanning Electron Microscopy (SEM), X-ray powder Diffraction (XRD) and FT-IR spectroscopy. The thermal stability of compound (1) was studied by Thermogravimetric Analysis (TGA). The amount of initial reagents and the role of reaction time on size and morphology of nanostructure compound (1) were studied. CuO nanoparticles were simply synthesized at 500 oC under air atmosphere. Results & Conclusion: The diameter of CuO nanoparticles was estimated to be about 200 and 30 nm from copper complex precursor obtained by sonochemical and solvothermal methods respectively.

2019 ◽  
Vol 10 (4) ◽  
pp. 2845-2848
Author(s):  
Sadhvi B ◽  
Rajeshkumar S ◽  
Anitha Roy ◽  
Lakshmi T

To synthesise Copper oxide nanoparticles and study it's characterisation using UV -viz - Spectrophotometer and TEM.  Copper oxide nanoparticles are eco-friendly, cost-efficient and diverse utilisation all over the medical field. The shape of the CuO nanoparticles are spherical, and its characterisation is done using SEM, TEM, and UV-vis techniques. The size of the nanoparticles mediated in each plant extract differs from one another. MATERIALS AND METHODS  * Collection and Preparation of Plant extracts. * Synthesis Of CuONPs * Characterization of copper nanoparticles * preparation of nanoparticles powder. The plant extract is in green colour, and the CuO nanoparticles are seen in light yellowish in colour. Uv-VIS SPECTROMETER:  The particle size ranges from 2-100nm and shape is spherical. The graph reached its peak at the wavelength of 300nm. The TEM shows spherical shape, dispersion and versatile nanoparticles. They appear to be arranged in a cluster, open and quasi-linear superstructures. This research shows that CuO nanoparticles shows excellent biocompatibility. The particles which are smaller in size shows great immunity. Hence the nanoparticles are expected to be used in future for effective drug systems.


RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3346-3353
Author(s):  
Iman Khaldari ◽  
Mohammad Reza Naghavi ◽  
Elaheh Motamedi

Among the conventional methods in synthesizing nanoparticles, the methods that use biological resources, as reducing and stabilizing agents, can be considered eco-friendly methods.


Author(s):  
Shivani Kushwaha

Abstract: Nanotechnology is a rising field of science and technology that deals with the particles having size in the range of 1 to 100 nm. Copper oxide nanoparticles has many properties like antifungal activity, antibacterial activity, optical properties, conductive properties, etc. Due to its demand of diversified use, copper oxide nanoparticles were fabricated using ecofriendly and non-toxic Annona muricata stem extract. The extract with copper sulphate pentahydrate showed gradual change in the colour of the extract from brown to green which indicates the CuO nanoparticles synthesis. The fabrication is followed by characterization of CuO nanoparticles using UV-vis spectroscope, FTIR, XRD and SEM. The characterization showed roughly spherical shaped nanoparticles in the range of 100nm with high crystalline monoclinic phase. FTIR absorption spectra conclude that the compounds attached with copper oxide nanoparticles could be polyphenols with aromatic ring. The CuO nanoparticles exhibited antibacterial activity; it showed the maximum activity against E.coli (18 mm). Keywords: Annona muricata, copper sulphate pentahydrate, FTIR, nanomaterials, SEM, XRD.


2016 ◽  
Vol 3 (2) ◽  
pp. 365-374 ◽  
Author(s):  
Amaraporn Wongrakpanich ◽  
Imali A. Mudunkotuwa ◽  
Sean M. Geary ◽  
Angie S. Morris ◽  
Kranti A. Mapuskar ◽  
...  

The increasing use of copper oxide (CuO) nanoparticles (NPs) in medicine and industry demands an understanding of their potential toxicities.


2014 ◽  
Vol 38 (9) ◽  
pp. 4267-4274 ◽  
Author(s):  
Manoj Trivedi ◽  
Sanjeev kumar Ujjain ◽  
Raj Kishore Sharma ◽  
Gurmeet Singh ◽  
Abhinav Kumar ◽  
...  

A cyano-bridged Cu(ii)–Cu(i) complex was synthesized and transformed into CuO nanoparticles. Their catalytic activity in C–N, C–O, and C–S cross-coupling reactions was explored.


2006 ◽  
Vol 2006 (1) ◽  
pp. 144-149 ◽  
Author(s):  
Violetta Patroniak ◽  
Artur R. Stefankiewicz ◽  
Jean-Marie Lehn ◽  
Maciej Kubicki ◽  
Marcin Hoffmann

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