Rose-like Cu2O synthesized by assisted PVP K30 hydrothermal method

Rose-like Cu₂O nanoflowers have been synthesized by polyvinylpyrrolidone K30 (PVP K30)-assisted hydrothermal method. Here, copper sulfate CuSO₄ and sodium hydroxide NaOH were used as raw materials. The synthesized Cu₂O powders were characterized by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). XRD pattern exhibited the nanocrystalline nature with cubic structure for the synthesized nanostructures. FESEM images indicated that the rose-like Cu₂O nanostructures are composed of many nearly rectangular shape nanosheets in size of about 1–2 micrometers in width and length and approximate 50–60 nm in thickness. Analysis results reveal that PVP K30 plays a vital role in formation of rose-like Cu₂O nanoflower in this work. The probable formation mechanism of rose-like Cu₂O nanoflower was discussed.