| publication name | SOL–GEL DERIVED PHOSPHOSILICATE AND ALUMINOPHOSPHOSILICATE GELS AT LOWER TEMPERATURE |
|---|---|
| Authors | Mohamed M. ElOkr, Fatma Metawe, Amany M ElNahrawy, Basma A. A. Osman |
| year | 2016 |
| keywords | Phosphosilicate gel, Aluminophosphosilicate gel, Sol gel process,Low temperature, Structure |
| journal | International Journal of Advancement in Engineering, Technology and Computer Sciences |
| volume | 3 |
| issue | 1 |
| pages | 1-5 |
| publisher | Not Available |
| Local/International | International |
| Paper Link | http://www.irosss.org/ojs/index.php/IJAETCS/article/view/713/216 |
| Full paper | download |
| Supplementary materials | Not Available |
Abstract
A sol–gel process for producing phosphosilicate (80 P2O5- 20 SiO2) and aluminophosphosilicate (70 P2O5- 20 SiO2-10 Al 2O3) gels at lower temperatures derived from triethyphosphate (TEP), tetraethoxysilane (TEOS) and aluminum nitrate has been developed. The structural and chemical characteristics of the nanostructures were investigated by X-ray diffraction (XRD),scanning electron microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Formation of P -O-Si, P -O-P, Si-O-Si, Al-O-Si and P -O-Al bonds was observed from FTIR spectra for the prepared samples after a heat treatment at 300 o C. The XRD results show that the crystallinity degree increases with increasing the calcination temperature and Al2O3ions.