GREEN SYNTHESIS OF COPPER OXIDE NANOPARTICLES BY PHEONIX DACTYLIFERA L LEAVES EXTRACT

[摘要] Green synthesis of metal nanoparticles (NPs) has attracted considerable attention because of its cheaper protocols and more environmentally friendly than standard synthetic methods. In the present paper, Phoenix dactylifera L extract was used to synthesize copper oxide nanoparticles with a differentvolume ratiobetween plant extract and metal (1mL of the plant extract to 100mL of 1mM CuSO4.5H2O).The obtained copper oxide nanoparticles were characterized by UV-Vis, FT-IR, XRD, SEM, and EDAX techniques. UV-Vis spectra showed a maximum absorption at 275nm related to the copper oxide.FT-IR spectra exhibit a weak peak at 554 cm−1 attributed to CuO vibration, confirming the formation of CuO nanoparticles. In addition, a disappearance peaks at 3264cm-1from the solution of as prepared (NPs) reveals that polyphenols are responsible for thecopper oxide NPs formation. XRD confirmed the crystalline natureof CuO and Cu2O NPs with average size ranged in 22-28 nm. SEM survey shows that the obtained nanoparticles having in general aspherical shape. As established by EDAX to confirm the presence of copper and oxygen, the weight percentage of the latterwas (72.39% Cu and 27.61% O), respectively.

[学科分类] 生物技术

[关键词] Green synthesize;Phoenix Dactylifera. L;Copper oxide;Nanoparticles;XRD