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/ http://irep.iium.edu.my/12241/1/05Dec2009.pdf

id	iium-12241
recordtype	eprints
spelling	iium-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 PeerReviewed 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
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
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/ http://irep.iium.edu.my/12241/1/05Dec2009.pdf
first_indexed	2023-09-18T20:21:29Z
last_indexed	2023-09-18T20:21:29Z
_version_	1777408136471117824

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

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