Preparation of nano-crystalline TiO2 by Sol-gel method using titanium tetraisopropoxide (TTIP) as a precursor
Journal
Advances in Natural Science: Theory & Applications
Date Issued
2012-06
Author(s)
Andrej Cenovar, Perica Paunovic, Anita Grozdanov, Petre Makreski, Emilija Fidanccevska
Abstract
A sol-gel procedure for producing nano-sized T iO2 from organometallic
precursor -titanium tetraisopropoxide (TTIP), is presented. The characteristic pro-
cesses and transformations were determined by means of TGA/DTA method. The
crystalline structure of the prepared T iO2 samples was analyzed by means of Raman
spectroscopy and XRD method. The size of the crystallites was determined by means
of XRD analysis using the Scherrer’s equation. In the temperature interval from 250 to
650oC the anatase crystalline structure is stable, while at 650oC the presence of anatase
and rutile crystal structures was detected. Increasing the temperature influences the
increase of the size of the crystalline particles from 6 nm at 250oC, to more than 100
nm at 800oC.
precursor -titanium tetraisopropoxide (TTIP), is presented. The characteristic pro-
cesses and transformations were determined by means of TGA/DTA method. The
crystalline structure of the prepared T iO2 samples was analyzed by means of Raman
spectroscopy and XRD method. The size of the crystallites was determined by means
of XRD analysis using the Scherrer’s equation. In the temperature interval from 250 to
650oC the anatase crystalline structure is stable, while at 650oC the presence of anatase
and rutile crystal structures was detected. Increasing the temperature influences the
increase of the size of the crystalline particles from 6 nm at 250oC, to more than 100
nm at 800oC.
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