Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/2440
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Civil and Environmental Engineering | - |
dc.creator | Li, XZ | - |
dc.creator | Yue, PT | - |
dc.creator | Mak, CL | - |
dc.date.accessioned | 2014-12-11T08:29:14Z | - |
dc.date.available | 2014-12-11T08:29:14Z | - |
dc.identifier.issn | 0273-1223 | - |
dc.identifier.uri | http://hdl.handle.net/10397/2440 | - |
dc.language.iso | en | en_US |
dc.publisher | IWA Publishing | en_US |
dc.rights | © IWA Publishing 2000. The definitive peer-reviewed and edited version of this article is published in Water Science and Technology, v.42, no.12, p.181-188, 2000 and is available at www.iwapublishing.com. | en_US |
dc.subject | Anodic oxidation | en_US |
dc.subject | Titanium dioxide | en_US |
dc.subject | Photoelectrocatalytic oxidation | en_US |
dc.subject | Wool dye | en_US |
dc.subject | Trichlorophenol | en_US |
dc.title | Photooxidation of wool dye and TCP in aqueous solution using an innovative TiO?mesh electrode | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.description.otherinformation | Author name used in this publication: X. Z. Li | en_US |
dc.description.otherinformation | Author name used in this publication: P. T. Yue | en_US |
dc.description.otherinformation | Author name used in this publication: C. L. Mak | en_US |
dc.identifier.spage | 181 | - |
dc.identifier.epage | 188 | - |
dc.identifier.volume | 42 | - |
dc.identifier.issue | 12 | - |
dcterms.abstract | An innovative titanium dioxide (TiO?) mesh electrode was prepared by anodisation, in which 0.5 M sulphuric acid was used as electrolyte and titanium (Ti) metal mesh was anodised in a two stage anodic process. The innovated mesh electrode was examined using Raman spectroscopy to determine the formation of TiO?layer when different potentials of 120 V, 140 V, 160 V, and 180 V were applied in anodisation. Microporous surface of the electrode was also examined using scanning electron microscopy. The photocatalytic (PC) oxidation and photoelectrocatalytic (PEC) oxidation were studied using the new electrode for treating synthetic wastewater solutions of dye and trichlorophenol (TCP) respectively. The colour removal efficiency of 68% was achieved using the 160V-mesh electrode for treating wool dye solution after 80minutes reaction time. However, it was found that a significant substrate adsorption on the surface of the mesh electrode could not be avoided when pH was below pH[sub IEP] of TiO?=6.3. In this condition, electrostatic adsorption occurred between the anionic substrate molecules and positively charged TiO?surface. The adsorbed substrate anion occupied most active sites of TiO?on the mesh electrode surface and significantly reduced the performance efficiency of photo-oxidation, when the TiO?mesh electrode was reused. The experiment demonstrated that TCP adsorption on the mesh electrode could be significantly eliminated, when pH of TCP solution was adjusted to above 7. When raising pH in TCP photodegradation eliminated substrate adsorption, it was confirmed that PC oxidation with application of a potential bias could enhance the photo-oxidation rate and a repeatable photo-oxidation rate could be maintained when the same mesh electrode was reused in its following tests. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Water science and technology, 2000, v. 42, no. 12, p. 181-188 | - |
dcterms.isPartOf | Water science and technology | - |
dcterms.issued | 2000 | - |
dc.identifier.isi | WOS:000166382900019 | - |
dc.identifier.scopus | 2-s2.0-0034519484 | - |
dc.identifier.rosgroupid | r00949 | - |
dc.description.ros | 2000-2001 > Academic research: refereed > Publication in refereed journal | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
17.pdf | Pre-published version | 262.52 kB | Adobe PDF | View/Open |
Page views
140
Last Week
0
0
Last month
Citations as of Oct 13, 2024
Downloads
265
Citations as of Oct 13, 2024
SCOPUSTM
Citations
5
Last Week
0
0
Last month
0
0
Citations as of Jul 4, 2024
WEB OF SCIENCETM
Citations
5
Last Week
0
0
Last month
0
0
Citations as of Oct 10, 2024
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.