Paper Title
Effects Of Hydrolysis Degree On The Titanium Dioxide Photocatalyst Powder Via Sol-Gel Method
Abstract
-In this paper, nanosized TiO2 powder with
anatase structure has been synthesized via sol-gel
method using titanium tetraisopropoxide as a
precursor and their physicochemical properties were
studies. The mole ratio of titanium tetraisopropoxide
(i.e. 0.2mol) mixed with 50 ml methanol to evaluate
effect of hydrolysis degree. The synthesized powders
were characterized by XRD, TG-DTA, FT-IR and
SEM. The average particle sized of TiO2 is
calculated from XRD and found to be 83.538 nm (i.e.
~83 nm). The DTA analysis shows that amorphous
phase transform into anatase phase at lower
temperature (below 4000
c.) TGA analysis exhibit
that there is removal of unhydrolysed isopropoxide
bonded in TiO2 due to weight loss. FT-IR analysis
indicates that the inorganic bond of Ti-O does not
exist at low wave number. The morphological study
carried by SEM shows TiO2 powder consist of
spherical shaped particles.
Keywords- Nanostructured TiO2, sol-gel, photo-
catalysis, anatase, morphologica