التخليق الأخضر لجزيئات أوكسيد النحاس النانوية ودراسة تآثيرها على إزالة الصبغات وتحلل الدم.

A GREEN SYNTHESIS OF COPPER OXIDE NANOPARTICLES AND STUDY THEIR EFFECTS ON DYES REMOVAL AND BLOOD HEMOLYSIS .

In this work, a green and cost-effective approach for producing copper oxide nanoparticles (CuO NPs) at room temperature utilizing Anchusa strigosa L. flower aqueous extract was described. UV–visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive X-ray analysis (EDX-Elemental) methods were used to analyze the produced CuO NPs. Very stable, spherical particles were produced with an average crystal size of )28.22) nm. The CuO NPs were explored for their adsorption of Safranine and Gongo red dyes from aqueous solution . For the removal of two dyes utilizing CuO NPs, several batch experiment parameters, such as nanosorbent dosage, contact duration, pH, and ionic strength, were investigated . The isothermal equilibrum stoichiometric adsorption confirmed, the process data were examined by Langmuir, Freundlich , Temkin and Halsey adsorption equations at different temperatures (288-318K(.The isothermal Freundlich and Halsey models gave a good linear relationship with the adsorption for Congo Red Safranin dyes using surface the CuONPs.The thermodynamic functions (ΔG, ΔH, ΔS) for the adsorption processes of safranin O and Congo red dyes on CuO NPs at different temperatures (288-318 k) were calculated. The change in enthalpy, ΔH, values obtained were(-23.1271 ) which means exothermal for Congo red, showing the adsorpation is the chemical adsorption, and (12.2731) which means endothermal for Safranin O, showing the adsorpation is the physical adsorption. Isotherms obtained from the experiments were identical to (4S-curve) in form at Giles’ classification . The hemocompatibility of synthesized CuO nanoparticles was studied by hemolysis tests using human erythrocytes drawn from healthy volunteers.