Cu Nano-Roses Self-Assembly from <i>Allium cepa,</i> L., Pyrolysis by Green Synthesis of C Nanostructures
oleh: Paola De Padova, Amanda Generosi, Barbara Paci, Bruno Olivieri, Carlo Ottaviani, Claudio Quaresima, Lorenza Suber, Fabio Di Pietrantonio, Giancarlo Della Ventura, Luciano Pilloni, S Supriya, Gurumurthy Hegde
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2020-05-01 |
Deskripsi
Carbon nanostructures are achieved by bio-waste <i>Allium cepa</i>, L., (onion vulgaris) peels through pyrolysis at 900 °C. They contain dispersed elements derived by their bio-precursors, like Mg, Ca, S, Na, K, and Cu. Here, we report the self-assembly of new Cu flower-shaped nanostructures organized as nano-roses. Remarkably, the nano-roses show rolled-up petals of Cu<sup>0</sup> with a high chemical stability in air, exhibiting an intrinsic pure Cu crystalline phase. This suggests the exceptional potentiality to synthesize Cu<sup>0</sup> nanostructures with novel physical/chemical properties. The size, morphology, and chemical composition were obtained by a combination of high-resolution scanning electron microscopy, energy dispersive X-ray spectroscopy, energy dispersive X-ray diffraction, and Raman spectroscopy.