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dc.contributor.authorSun, Hongqi
dc.contributor.authorWang, Shaobin
dc.contributor.authorAng, Ming
dc.contributor.authorTade, Moses
dc.contributor.authorLi, Qin
dc.date.accessioned2017-01-30T12:22:32Z
dc.date.available2017-01-30T12:22:32Z
dc.date.created2015-03-03T20:16:44Z
dc.date.issued2010
dc.date.submitted2015-03-04
dc.identifier.citationSun, H. and Wang, S. and Ang, M. and Tade, M. and Li, Q. 2010. Halogen element modified titanium dioxide for visible light photocatalysis. Chemical Engineering Journal. 162 (2): pp. 437-447.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/20992
dc.identifier.doi10.1016/j.cej.2010.05.069
dc.description.abstract

Halogen elements, i.e. fluorine, chlorine, bromine, and iodine, have attracted intensive interests in modification of TiO2 for photocatalytic oxidation of organic pollutants under visible light irradiation. Compared to other metal and non-metal elements, halogens show 3-fold advantages, such as improvement of UV activity, various cations or anions for substitution of Ti4+ and/or O2− in the TiO2 matrix, narrowing the band gap of TiO2 and tuning the band position. In this paper synthesis, physicochemical properties, mechanism of visible response, and photocatalytic activities of halogen modified TiO2 are reviewed. It is found that introduction of a halogen element into TiO2 crystals could lead to the enhancement of surface acidity, formation of surface hydroxyl radicals, more active sites, creation of oxygen vacancies or Ti3+, narrowing the band gap and tuning the valence band position. As a consequence, halogen modified TiO2 exhibited high activity for organics oxidation under visible light radiation in aqueous and gas phases.

dc.publisherElsevier BV
dc.titleHalogen element modified titanium dioxide for visible light photocatalysis
dc.typeJournal Article
dcterms.dateSubmitted2015-03-04
dcterms.source.volume162
dcterms.source.startPage437
dcterms.source.endPage447
dcterms.source.issn13858947
dcterms.source.titleChemical Engineering Journal
curtin.digitool.pid218034
curtin.pubStatusPublished
curtin.refereedTRUE
curtin.departmentDepartment of Chemical Engineering
curtin.identifier.scriptidPUB-SE-DCE-JB-56963
curtin.accessStatusFulltext not available


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