Hydrolysis of Titanium Tetrabutoxide. Study by FT-IR Spectroscopy
作者:
M.J. Velasco,
F. Rubio,
J. Rubio,
J.L. Oteo,
期刊:
Spectroscopy Letters
(Taylor Available online 1999)
卷期:
Volume 32,
issue 2
页码: 289-304
ISSN:0038-7010
年代: 1999
DOI:10.1080/00387019909349984
出版商: Taylor & Francis Group
关键词: Titanium alkoxide;hydrolysis;FT-IR;Deconvolution;Time Evolution.
数据来源: Taylor
摘要:
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−1and 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−1respectively 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.
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