M. J. Velasco, F. Rubio, J. Rubio
Mar 1, 1999
Citations
3
Influential Citations
41
Citations
Journal
Spectroscopy Letters
Abstract
Abstract In this work we have studied the hydrolysis of titanium tetrabutoxide (TTB) in butyl alcohol. The hydrolysis was carried out by adding H2O for a molar ratio water/alkoxide of 4. The hydrolysis has been followed by FT-IR spectroscopy, and the evolution of the Ti-O-C bands of the TTB molecule have been analysed. These bands are located at 1130, 1100 and 1039 cm−1 and their intensities decrease with the hydrolysis time. However, these bands do not disappear for several days of hydrolysis confirming the difficulty to obtain a completely hydrolysed TTB molecule. Two IR bands have been assigned to Ti-OH groups and adsorbed H2O molecules. These bands appear at 3660 and 3525 cm−1 respectively and they are firstly observed when a white precipitate appears in the solution. This work shows that this study can be rapidly carried out by FT-IR spectroscopy and can also be applied to the well-established sol-gel process.