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Ass. Lect. Basma Abd El kader Ahmed Osman :: Publications: |
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| Title: | 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: | |
| Full paper | Basma Abd El kader Ahmed Osman_713-1996-1-SM.pdf |
| 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. |
