In the present work, Al2O3doped (80 P
2O5: 20 SiO2
) nanostructures were
successfully prepared using a sol–gel process using triethyphosphate and tetraethylorthosilicate.
We investigated the phase structure, microstructure and spectroscopic properties. Three
different solutions were prepared by changing Al/P molar ratios such as 0, 10 and 15 in acidic
condition. The obtained gel were aged at room temperature and dried at 100°C forming xerogel
and subsequently calcined at different temperatures from 100 up to 700
o
C for 3h in air. The
obtained oxides were characterized using X-ray diffraction (XRD), scanning electron
microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The micro-structural
observations demonstrated that Al
2O3
content improved surface morphology of the
nanostructure phosphosilicate. X-ray diffraction and FT-IR showed that the addition of Al
2O3
caused the formation of phosphosilicate network as P–O–Si, and formation of mixed phases
based on P–O–Si–O–Al and P–O–Al separated from the phosphate matrix |
