The adsorption of Cu(II) on oxidized multi-walled carbon nanotubes (oMWCNTs) as a function of contact time, pH, ionic strength, temperature, and hydroxylated fullerene (C60(OH)n) and carboxylated fullerene (C60(C(COOH)2)n) were studied under ambient conditions using batch techniques. The results showed that the adsorption of Cu(II) had rapidly reached equilibrium and the kinetic process was wel...

The presented work is devoted to the preparation of nanocomposites based on multiwall carbon nanotubes (MWCNTs) and copper (Cu) nanoparticles by a simple chemical method, study their sensing properties hydrogen sulfide (H2S) gas. Cu decorated (MWCNTs/Cu) were prepared deposition very thin layers pristine functionalized (f-MWCNTs) using both physical (electron beam evaporation (EBE)) (electroche...

I. Black-hooded weanling rats were given a copper-deficient diet or diets providing 3 ppm Cu with or without supplements containing combinations of molybdate, sulphate and sulphide salts to provide 35 ppm molybdenum and z pg atoms sulphurlg. Changes in weight and blood haemoglobin concentration were studied during 48 d of treatment. The subcellular distribution of Cu and Mo in the liver was sub...

The oxidation of AuCu nanoparticles was studied as a function of composition and temperature. Oxidation rates at 110 °C were higher for NPs with higher Cu content, showing that Au stabilized the Cu. Electrochemistry measurements show that AuCu could be a promising catalyst for lowering the over potential of CO(2) reduction.

The effect of an Mg-deficient diet (200 mg of Mg/kg of feed) on the bioavailability of dietary Cu and the concentration of the cation in plasma, whole blood, skeletal muscle, kidney, heart, and liver of Wistar rats after 7, 35, 49, and 70 days was studied. The Mg-deficient diet significantly increased the amount of Cu absorbed during the 10th (final) week of the experiment. A direct linear corr...

Two-component reaction of 2-aminobenzophenones with acetylenic esters in the presence of γ-Al2O3 and Cu/ZnO as suitable heterogeneous catalysts has been studied. Nano γ-Al2O3 and Cu/ZnO showed high activities when used as surface catalysts for the synthesis of quinoline derivatives. After completion of the reaction, the catalyst was ...

The biphasic effects of Cu on the growth and some biochemical parameters of Hassawi wheat were studied. Hassawi wheat seeds were grown in various copper (Cu) levels (0, 2, 10, 20, 40, 80 and 100 mM) for 30 days. Cu was applied on soil as Cu2SO4.5H2O. The results showed that Cu concentration at 2 mM level promotes the growth and tested biochemical parameters of Hassawi wheat plants and can be co...