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Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties

TiO2 -SiO2 powder photocatalysts with varied SiO2 portion were prepared through sol-gel technique using two types of metal alkoxides: titanium tetraisopropoxide (TPT) and titanium diisopropoxide (PTP). Tetraethoxysilane (TEOS) as the silicon precursor was partially hydrolysed at room temper...

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Main Authors: Abd Aziz, Radhiyah, -, Nor Asyikin, Iis, Sopyan
Format: Article
Language:English
Published: The Instituition of Engineers Malaysia 2009
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://irep.iium.edu.my/12241/1/05Dec2009.pdf
http://irep.iium.edu.my/12241/
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spelling my.iium.irep.122412012-01-16T00:11:27Z http://irep.iium.edu.my/12241/ Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties Abd Aziz, Radhiyah -, Nor Asyikin Iis, Sopyan TA Engineering (General). Civil engineering (General) TiO2 -SiO2 powder photocatalysts with varied SiO2 portion were prepared through sol-gel technique using two types of metal alkoxides: titanium tetraisopropoxide (TPT) and titanium diisopropoxide (PTP). Tetraethoxysilane (TEOS) as the silicon precursor was partially hydrolysed at room temperature, followed by the dropwise addition of these two metal alkoxides to produce polytitanosiloxane (PTS) solution. Hexane filtration of the PTS solution followed by drying and calcination gave TiO2 -SiO2 powder. The physico-chemical characteristics of the obtained powders were investigated using TG-DTA, FTIR, XRD, and FESEM. Both types of powder particles were in nano-sized with spherical shape. The powder derived from PTP showed particle size smaller than that derived from TPT. From TGA analysis, it can be observed that the PTP derived powder start to crystallise at lower temperature compared to the TPT derived powder. However, TPT derived powder showed a stability of anatase crystal structure even after high temperature calcination The Instituition of Engineers Malaysia 2009 Article REM application/pdf en http://irep.iium.edu.my/12241/1/05Dec2009.pdf Abd Aziz, Radhiyah and -, Nor Asyikin and Iis, Sopyan (2009) Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties. Journal of the Institution of Engineers, Malaysia, 70 (4). pp. 34-40. ISSN 0126-513X
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Abd Aziz, Radhiyah
-, Nor Asyikin
Iis, Sopyan
Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties
description TiO2 -SiO2 powder photocatalysts with varied SiO2 portion were prepared through sol-gel technique using two types of metal alkoxides: titanium tetraisopropoxide (TPT) and titanium diisopropoxide (PTP). Tetraethoxysilane (TEOS) as the silicon precursor was partially hydrolysed at room temperature, followed by the dropwise addition of these two metal alkoxides to produce polytitanosiloxane (PTS) solution. Hexane filtration of the PTS solution followed by drying and calcination gave TiO2 -SiO2 powder. The physico-chemical characteristics of the obtained powders were investigated using TG-DTA, FTIR, XRD, and FESEM. Both types of powder particles were in nano-sized with spherical shape. The powder derived from PTP showed particle size smaller than that derived from TPT. From TGA analysis, it can be observed that the PTP derived powder start to crystallise at lower temperature compared to the TPT derived powder. However, TPT derived powder showed a stability of anatase crystal structure even after high temperature calcination
format Article
author Abd Aziz, Radhiyah
-, Nor Asyikin
Iis, Sopyan
author_facet Abd Aziz, Radhiyah
-, Nor Asyikin
Iis, Sopyan
author_sort Abd Aziz, Radhiyah
title Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties
title_short Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties
title_full Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties
title_fullStr Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties
title_full_unstemmed Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties
title_sort synthesis of tio2-sio2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties
publisher The Instituition of Engineers Malaysia
publishDate 2009
url http://irep.iium.edu.my/12241/1/05Dec2009.pdf
http://irep.iium.edu.my/12241/
_version_ 1643606598575194112
score 13.188404

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