Abstract
Various morphologies of ZnO nanostructures, such as nanoparticles, nanorods and nanoflowers have been achieved controllably by polymeric sol-gel method. In this approach, zinc nitrate Zn(NO 3) 2·6H 2O, citric acid and ethylene glycol were used as the source of Zn 2+, the chelating agent and the solvent agent, respectively. The microstructure of the ZnO nanostructures was characterized by X-ray diffractometry, scanning electron microscopy with the energy dispersive X-ray spectroscopy, transmission electron microscopy, thermogravimetric analysis and Fourier transform infrared spectroscopy. The effect of ethylene glycol to citric acid mole ratio on the morphology and structure of the products was discussed. The ZnO nanoparticles with diameter between 24 ± 2 nm was obtained with EG:CA mole ratio equal to 2:1. The optical properties of as-obtained power were investigated by ultraviolet-visible spectroscopy.
| Original language | English |
|---|---|
| Pages (from-to) | 193-199 |
| Number of pages | 7 |
| Journal | Journal of Sol-Gel Science and Technology |
| Volume | 64 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Oct 2012 |
| Externally published | Yes |
Keywords
- Nanostructured materials
- Optical properties
- Pechini processes
- Polymeric complex method
- Semiconductors
- Zinc oxide
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- General Chemistry
- Biomaterials
- Condensed Matter Physics
- Materials Chemistry