Singlet oxygen photogeneration at surface modified titanium dioxide

2006
journal article
article
199
dc.abstract.enSubstitution of surface −OH groups of $TiO_{2}$ may influence competition between photoinduced energy and electron-transfer processes and lead to improved singlet oxygen generation. In contrast to neat $TiO_{2}$, surface modified titanium dioxide can photocatalyze degradation of a very stable substance, cyanuric acid. Presented results are in contradiction to usually accepted hypothesis of the mechanism of cyanuric acid photodegradation in the presence of fluorinated $TiO_{2}$ (F−$TiO_{2}$) in which "bulk" hydroxyl radicals play a key role. It seems plausible that the difference of activity observed for $TiO_{2}$ and F−$TiO_{2}$ is not related to various types of generated hydroxyl radicals, but rather to competition between electron-transfer processes (formation of radicals) and energy-transfer processes (formation of singlet oxygen).pl
dc.affiliationWydział Chemii : Zakład Chemii Nieorganicznejpl
dc.contributor.authorKyzioł, Agnieszka - 147927 pl
dc.contributor.authorKrakowska, Elżbietapl
dc.contributor.authorStochel, Grażyna - 132108 pl
dc.contributor.authorMacyk, Wojciech - 130162 pl
dc.date.accessioned2014-12-23T16:29:15Z
dc.date.available2014-12-23T16:29:15Z
dc.date.issued2006pl
dc.description.additionalNa publikacji autorka Kyzioł Agnieszka podpisana jako Jańczyk Agnieszka.pl
dc.description.number49pl
dc.description.physical15574-15575pl
dc.description.volume128pl
dc.identifier.doi10.1021/ja065970mpl
dc.identifier.eissn1520-5126pl
dc.identifier.issn0002-7863pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/2407
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subtypeArticlepl
dc.titleSinglet oxygen photogeneration at surface modified titanium dioxidepl
dc.title.journalJournal of the American Chemical Societypl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Substitution of surface −OH groups of $TiO_{2}$ may influence competition between photoinduced energy and electron-transfer processes and lead to improved singlet oxygen generation. In contrast to neat $TiO_{2}$, surface modified titanium dioxide can photocatalyze degradation of a very stable substance, cyanuric acid. Presented results are in contradiction to usually accepted hypothesis of the mechanism of cyanuric acid photodegradation in the presence of fluorinated $TiO_{2}$ (F−$TiO_{2}$) in which "bulk" hydroxyl radicals play a key role. It seems plausible that the difference of activity observed for $TiO_{2}$ and F−$TiO_{2}$ is not related to various types of generated hydroxyl radicals, but rather to competition between electron-transfer processes (formation of radicals) and energy-transfer processes (formation of singlet oxygen).
dc.affiliationpl
Wydział Chemii : Zakład Chemii Nieorganicznej
dc.contributor.authorpl
Kyzioł, Agnieszka - 147927
dc.contributor.authorpl
Krakowska, Elżbieta
dc.contributor.authorpl
Stochel, Grażyna - 132108
dc.contributor.authorpl
Macyk, Wojciech - 130162
dc.date.accessioned
2014-12-23T16:29:15Z
dc.date.available
2014-12-23T16:29:15Z
dc.date.issuedpl
2006
dc.description.additionalpl
Na publikacji autorka Kyzioł Agnieszka podpisana jako Jańczyk Agnieszka.
dc.description.numberpl
49
dc.description.physicalpl
15574-15575
dc.description.volumepl
128
dc.identifier.doipl
10.1021/ja065970m
dc.identifier.eissnpl
1520-5126
dc.identifier.issnpl
0002-7863
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/2407
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.rights.uri*
dc.subtypepl
Article
dc.titlepl
Singlet oxygen photogeneration at surface modified titanium dioxide
dc.title.journalpl
Journal of the American Chemical Society
dc.typepl
JournalArticle
dspace.entity.type
Publication
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