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Intrinsic effect of H2O on the structural characteristic of TiO2 synthesized by using polyethylene glycol as template

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Authors
Oh, Song-Taek; Lu, Lianhai; Lee, Ho-In
Issue Date
2006
Publisher
Elsevier
Citation
Materials Letters 60 (2006) 2795–2798
Keywords
TiO2Polyethylene glycolIn-situ esterificationChannel structurePhotocatalysis
Abstract
The structural characteristics of TiO2 were found to intrinsically depend on the existence of H2O when using polyethylene glycol (PEG) as
templating material in synthetic process. The channel-structured TiO2 with pore size of about 18 nm was obtained by in-situ esterification method
using PEG as alcohol source without adding H2O. The channel structure was originated from the organic–inorganic interaction between Ti species
and PEG template, which enhanced the photocatalytic activity for decomposition of 2-isopropyl-6-methyl-4-pyrimidinol (IMP). Adding excess
amount of H2O during the synthesis restrained the formation of organic–inorganic interaction, resulting in poor physical properties and low
photocatalytic activity of the prepared TiO2.
ISSN
0167-577X
Language
English
URI
http://hdl.handle.net/10371/61306
DOI
https://doi.org/10.1016/j.matlet.2006.01.091
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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