TiO <inf>2</inf> nanoparticles and nanofibres from TiCl <inf>4</inf> flocculated sludge: Characterisation and photocatalytic activity

El Saliby, I; Okour, Y; Shon, HK; Kandasamy, J; Lee, WE; Kim, JH

TiO <inf>2</inf> nanoparticles and nanofibres from TiCl <inf>4</inf> flocculated sludge: Characterisation and photocatalytic activity

El Saliby, I

Okour, Y Shon, HK

Kandasamy, J Lee, WE Kim, JH

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Publication Type:: Journal Article
Citation:: Journal of Industrial and Engineering Chemistry, 2012, 18 (3), pp. 1033 - 1038
Issue Date:: 2012-05-25

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Field	Value	Language
dc.contributor.author	El Saliby, I https://orcid.org/0000-0003-4119-3198	en_US
dc.contributor.author	Okour, Y	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.contributor.author	Kandasamy, J	en_US
dc.contributor.author	Lee, WE	en_US
dc.contributor.author	Kim, JH	en_US
dc.date.issued	2012-05-25	en_US
dc.identifier.citation	Journal of Industrial and Engineering Chemistry, 2012, 18 (3), pp. 1033 - 1038	en_US
dc.identifier.issn	1226-086X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/18396
dc.description.abstract	In this study, dye and secondary effluent wastewaters were used to generate a non-hazardous sludge. Anatase TiO 2 nanoparticles have been successfully synthesised from the calcination of the TiCl 4 flocculated sludge. A conventional hydrothermal method was adopted to produce anatase nanofibres (calcined at 600°C) from TiO 2 nanoparticles. X-ray diffraction, scanning electron microscopy and transmission electron microscopy investigations showed the highly crystalline nanoparticles and nanofibres after calcination. The size of nanofibres was related to the size of their nanoparticles precursors. Nanoparticles had larger surface area than nanofibres, lower pore volume and bigger pore diameter. Energy dispersive X-ray analysis revealed that impurities can be successfully removed by a subsequent hydrothermal/acid wash of nanoparticles. Nanoparticles had better overall photocatalytic activity for the degradation of organics in synthetic wastewater compared to nanofibres. On the other hand, nanofibres had a better adsorption capacity. © 2011 The Korean Society of Industrial and Engineering Chemistry.	en_US
dc.relation.ispartof	Journal of Industrial and Engineering Chemistry	en_US
dc.relation.isbasedon	10.1016/j.jiec.2011.12.002	en_US
dc.subject.classification	Polymers	en_US
dc.title	TiO <inf>2</inf> nanoparticles and nanofibres from TiCl <inf>4</inf> flocculated sludge: Characterisation and photocatalytic activity	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	18	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	18	en_US

Abstract:

In this study, dye and secondary effluent wastewaters were used to generate a non-hazardous sludge. Anatase TiO 2 nanoparticles have been successfully synthesised from the calcination of the TiCl 4 flocculated sludge. A conventional hydrothermal method was adopted to produce anatase nanofibres (calcined at 600°C) from TiO 2 nanoparticles. X-ray diffraction, scanning electron microscopy and transmission electron microscopy investigations showed the highly crystalline nanoparticles and nanofibres after calcination. The size of nanofibres was related to the size of their nanoparticles precursors. Nanoparticles had larger surface area than nanofibres, lower pore volume and bigger pore diameter. Energy dispersive X-ray analysis revealed that impurities can be successfully removed by a subsequent hydrothermal/acid wash of nanoparticles. Nanoparticles had better overall photocatalytic activity for the degradation of organics in synthetic wastewater compared to nanofibres. On the other hand, nanofibres had a better adsorption capacity. © 2011 The Korean Society of Industrial and Engineering Chemistry.

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http://hdl.handle.net/10453/18396