Preparation and characterization of titania nanoparticles from titanium tetrachloride and titanium sulfate flocculation of dye wastewater

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Show simple item record Kim, JB Seol, D-H Shon, HK Kim, G-J Kim, J-H 2010-06-16T04:57:44Z 2010
dc.identifier.citation Journal of the Japan Petroleum Institute, 2010, 53 (3), pp. 167 - 172
dc.identifier.issn 1346-8804
dc.identifier.other C1 en_US
dc.description.abstract Titanium dioxide (TiO2) is the most widely used metal oxide for environmental applications, cosmetics, paints, electronic paper and solar cells, so demand is increasing rapidly. TiO2 can be produced from Ti-flocculated sludge, which is superior to the commercially available TiO 2 in terms of photocatalytic activity and surface area. This process also reduces the amount of sludge for disposal after waste water treatment. In this study, flocculation of dye wastewater using TiCl4 and Ti(SO 4)2 coagulants was investigated to prepare TiO2 nanoparticles from Ti-salt flocculated sludge. Both coagulants showed high flocculation performance in removing organic matter (77%), total nitrogen (76%) and total phosphorus (95%) from dye wastewater. Therefore, Ti-salt coagulants can be used in dye wastewater treatment. Incineration of the Ti-salt flocculated sludge at 600°C was performed to produce TiO2 nanoparticles. Detailed characteristics of the TiO2 nanoparticles were investigated in terms of X-ray diffraction, surface area, functional group, microscopy and photocatalytic activity. The TiO2 produced from TiCl4 and Ti(SO4)2 flocculated sludge (DCT and DST, respectively) had only the anatase structure with 20 nm particle size. The specific area of DCT and DST was 71 and 69 m2/g, respectively. Both DCT and DST were doped with carbon, silicon and sodium. Both exhibited high photocatalytic activity with complete degradation of acetaldehyde within 80 min under UV irradiation. These findings imply that TiO2 nanoparticles produced from wastewater sludge have significant potential for applications such as photocatalyst bricks, ceramic filters for air/water purification, and selective catalytic reduction catalysts.
dc.language eng
dc.relation.hasversion Accepted manuscript version en_US
dc.relation.isbasedon 10.1627/jpi.53.167
dc.title Preparation and characterization of titania nanoparticles from titanium tetrachloride and titanium sulfate flocculation of dye wastewater
dc.type Journal Article
dc.parent Journal of the Japan Petroleum Institute
dc.journal.volume 3
dc.journal.volume 53
dc.journal.number 3 en_US
dc.publocation Korea en_US
dc.identifier.startpage 241 en_US
dc.identifier.endpage 250 en_US FEIT.School of Elec, Mech and Mechatronic Systems en_US
dc.conference Verified OK en_US
dc.for 039903 Industrial Chemistry
dc.personcode 995130
dc.personcode 10671600
dc.personcode 103883
dc.percentage 100 en_US Industrial Chemistry en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords flocculation, titanium salts, flocculated sludge, incineration, TiO2, photocatalysis, hydrogen production en_US
dc.description.keywords Dye wastewater
dc.description.keywords Flocculation
dc.description.keywords Sludge utilization
dc.description.keywords Titanium dioxide
dc.description.keywords Titanium sulfate
dc.description.keywords Titanium tetrachloride
pubs.embargo.period Not known
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 - Technology in Wastewater Treatment
utslib.copyright.status Open Access 2015-04-15 12:23:47.074767+10
utslib.collection.history General (ID: 2)

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