scholarly journals Soil invertebrate toxicity and bioaccumulation of nano copper oxide and copper sulphate in soils, with and without biosolids amendment

2021 ◽  
Vol 217 ◽  
pp. 112222
Author(s):  
Jessica R. Velicogna ◽  
Dina Schwertfeger ◽  
Alexander Jesmer ◽  
Claudia Beer ◽  
Joner Kuo ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Copper Sulphate ◽  
Soil Invertebrate

scholarly journals Green Synthesis, Characterization and Antibacterial Activity of Copper Oxide Nanoparticles Using Annona muricata Stem Extract

2021 ◽  
Vol 9 (12) ◽  
pp. 1205-1214
Author(s):  
Shivani Kushwaha
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Copper Sulphate ◽  
Copper Oxide Nanoparticles ◽  
Maximum Activity ◽  
Cuo Nanoparticles ◽  
Oxide Nanoparticles ◽  
Gradual Change ◽  
Annona Muricata ◽  
Stem Extract

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.

Exploratory studies on nanobiocide for wood preservation

2014 ◽  
Vol 37 (1) ◽  
pp. 9-16
Author(s):  
Aparna Kalawate
Keyword(s):  
Zinc Oxide ◽  
Copper Oxide ◽  
Copper Sulphate ◽  
Mechanical Milling ◽  
Ball Mill ◽  
High Energy ◽  
Planetary Ball Mill ◽  
Wood Preservation ◽  
Bond Quality

Nanotechnology presents a tremendous opportunity to boost the field of wood preservation through implementing modern and unique metal biocides with improved properties. Nano form of Copper oxide, Zinc oxide and Copper sulphate were made by mechanical milling in the high energy planetary ball mill with 450 rpm for 12 hours. Among the three tested nanobiocides Copper sulphate at 0.5% concentration provided protection to the plywood against wood destroying organisms without sacrificing the bond quality of plywood. This is the first report to develop and test the efficacy of nanobiocide against wood destroying organism in India.

scholarly journals Dietary exposure to copper sulphate compared to a copper oxide nanomaterial in rainbow trout: Bioaccumulation with minimal physiological effects.

2021 ◽  
Author(s):  
David Boyle ◽  
Nathaniel J. Clark ◽  
Benjamin P. Eynon ◽  
Richard D. Handy
Keyword(s):  
Rainbow Trout ◽  
Copper Oxide ◽  
Copper Sulphate ◽  
Dietary Exposure ◽  
Engineered Nanomaterials ◽  
Physiological Effects

The dietary bioaccumulation potential of engineered nanomaterials (ENMs) remains poorly understood. The aim of the current study was to assess the dietary bioaccumulation of copper from copper oxide (CuO) ENMs...

Preparation and Characterization of Hierarchical Porous Carbon by a Hard-Template

2015 ◽  
Vol 830-831 ◽  
pp. 585-588 ◽  
Author(s):  
Harish Varma ◽  
Avinesh ◽  
Rajaram Narasimman ◽  
Kuttan Prabhakaran
Keyword(s):  
Copper Oxide ◽  
Copper Sulphate ◽  
Carbothermal Reduction ◽  
Hierarchical Porous Carbon ◽  
Hard Template ◽  
Hierarchical Porous ◽  
Porosity Measurements ◽  
Adsorbent Materials

Carbon based adsorbent materials are prepared from sucrose using copper as hard pore template. The adsorbent materials were obtained by heating mixtures of sucrose and copper sulphate at temperatures in the range of 200 to 1000 °C for polymerization and carbonization followed by removal of copper template by leaching with dilute nitric acid. The copper templates were produced by the carbothermal reduction of copper oxide obtained by the decomposition of copper sulphate. The surface area and porosity measurements showed the presence of micropores in the carbon samples. The micropores are generated both by an in situ activation and carbothermal reduction of the copper oxide. The microporous carbon showed good CO2 adsorption characteristics.

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