In this study, a feasible green method for the synthesis of copper oxide nanocrystalline is described by using sour cherry juice which has a significant effect on crystalline size, and morphology. The benefits of the green method, not only nanometer scale are formed but also low-cost method are obtained in a normal atmosphere which it has been used (CH3COO)2Cu.H2O individually as Cu sources. All samples have calcination in 600°C. The effect of sour cherry juice concentration to control crystal growth is investigated by changing the amount of it to 20, 40, and 80 mL, respectively. The synthesized particles are characterized by using X-ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FE-SEM). Powder X-ray Diffraction analysis confirms that pure Copper Oxide nanocrystallines are in a single phase monoclinic structure which the average crystalline size has estimated via Williamson-Hall plot from the highest peak of the XRD was among 15-55 nm for all samples. Manuscript profile

T The nanostructures of Fe2O3 have been synthesized applying sour cherry juice and iron chloride as a low-cost and eco-friendly method at ambient conditions. Sour cherry juice has been used as a surfactant and the kind of surfactant had an important effect on the size and morphology of the products. The effect of sour cherry juice concentration and calcination temperature on the morphologies of Fe2O3 nanostructures has been investigated. The prepared nanoparticles were subjected to X-ray diffraction (XRD) analysis, field emission scanning electron microscopy (FE-SEM), and vibrating sample magnetometer (VSM) system. The powder X-ray diffraction analysis confirmed that Fe2O3 nanostructures are in Rhombohedral and Cubic phases. The average crystalline size estimated by the Williamson-hall method was about 13-32 nm for all samples. Various morphologies were also obtained by changing the amount of sour cherry juice. The saturation magnetization increased with the growth of crystals. Manuscript profile