Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal

Photocatalysis has been proven effective in controlling various environmental problems originated by pollutions both in liquid and gaseous phases. Titanium dioxide (TiO2) is well known the most practical photocatalyst as it has high photocatalytic efficiency, low band gap energy, and no toxicity. Va...

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Main Authors:	Sopyan, Iis, ., Nor Hafizah
Format:	Article
Language:	English
Published:	Trans Tech Publications Ltd., Switzerland 2015
Subjects:	TA401 Materials of engineering and construction
Online Access:	http://irep.iium.edu.my/46935/ http://irep.iium.edu.my/46935/ http://irep.iium.edu.my/46935/ http://irep.iium.edu.my/46935/1/2015%20AMM-hafizah.pdf

id	iium-46935
recordtype	eprints
spelling	iium-469352018-03-28T06:45:49Z http://irep.iium.edu.my/46935/ Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal Sopyan, Iis ., Nor Hafizah TA401 Materials of engineering and construction Photocatalysis has been proven effective in controlling various environmental problems originated by pollutions both in liquid and gaseous phases. Titanium dioxide (TiO2) is well known the most practical photocatalyst as it has high photocatalytic efficiency, low band gap energy, and no toxicity. Various chemical methods have been tried to produce TiO2 photocatalyst powder with high activity. In this study, sol-gel method has been employed to produce nanosized TiO2 photocatalyst particles and its physical properties and photocatalytic activity in phenol degradation test were compared with the commercial TiO2 powder, Degussa P25. The synthesis process was carried out through hydrolysis of titanium tetraisopropoxide (TPT) and methanol where the molar ratio of water to TPT was monitored to control the hydrolysis rate. From X-Ray Diffraction (XRD) analysis, the sol-gel TiO2 powder obtained was fully in anatase structure with high crystallinity. Scanning Electron Microscope (SEM) measurement showed that the powder was in nano to sub-micron size, spherical in shape, and tightly agglomerated. Thermal analysis confirmed that sol-gel derived amorphous TiO2 powder transformed to anatase phase after 400°C calcination. The test on photocatalytic performance conducted using aqueous solution of phenol as the representative of water pollutant examined in this study showed that the sol-gel TiO2 powder is more efficient in degrading phenol compared to one of the most active photocatalysts commercially available, Degussa P25. Trans Tech Publications Ltd., Switzerland 2015-07-23 Article PeerReviewed application/pdf en http://irep.iium.edu.my/46935/1/2015%20AMM-hafizah.pdf Sopyan, Iis and ., Nor Hafizah (2015) Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal. Applied Mechanics and Materials, 776. pp. 271-276. ISSN 1660-9336 https://www.scientific.net/AMM.776.271 https://doi.org/10.4028/www.scientific.net/AMM.776.271
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TA401 Materials of engineering and construction
spellingShingle	TA401 Materials of engineering and construction Sopyan, Iis ., Nor Hafizah Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal
description	Photocatalysis has been proven effective in controlling various environmental problems originated by pollutions both in liquid and gaseous phases. Titanium dioxide (TiO2) is well known the most practical photocatalyst as it has high photocatalytic efficiency, low band gap energy, and no toxicity. Various chemical methods have been tried to produce TiO2 photocatalyst powder with high activity. In this study, sol-gel method has been employed to produce nanosized TiO2 photocatalyst particles and its physical properties and photocatalytic activity in phenol degradation test were compared with the commercial TiO2 powder, Degussa P25. The synthesis process was carried out through hydrolysis of titanium tetraisopropoxide (TPT) and methanol where the molar ratio of water to TPT was monitored to control the hydrolysis rate. From X-Ray Diffraction (XRD) analysis, the sol-gel TiO2 powder obtained was fully in anatase structure with high crystallinity. Scanning Electron Microscope (SEM) measurement showed that the powder was in nano to sub-micron size, spherical in shape, and tightly agglomerated. Thermal analysis confirmed that sol-gel derived amorphous TiO2 powder transformed to anatase phase after 400°C calcination. The test on photocatalytic performance conducted using aqueous solution of phenol as the representative of water pollutant examined in this study showed that the sol-gel TiO2 powder is more efficient in degrading phenol compared to one of the most active photocatalysts commercially available, Degussa P25.
format	Article
author	Sopyan, Iis ., Nor Hafizah
author_facet	Sopyan, Iis ., Nor Hafizah
author_sort	Sopyan, Iis
title	Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal
title_short	Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal
title_full	Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal
title_fullStr	Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal
title_full_unstemmed	Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal
title_sort	cement bonded sol-gel tio2 powder photocatalysis for phenol removal
publisher	Trans Tech Publications Ltd., Switzerland
publishDate	2015
url	http://irep.iium.edu.my/46935/ http://irep.iium.edu.my/46935/ http://irep.iium.edu.my/46935/ http://irep.iium.edu.my/46935/1/2015%20AMM-hafizah.pdf
first_indexed	2023-09-18T21:06:48Z
last_indexed	2023-09-18T21:06:48Z
_version_	1777410987152900096

Cement bonded sol-gel TiO2 powder photocatalysis for phenol removal

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