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Redox-controlled photosensitization of nanocrystalline titanium dioxide


Redox-controlled photosensitization of nanocrystalline titanium dioxide

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dc.contributor.author Szaciłowski, Konrad [SAP11115985] pl
dc.contributor.author Macyk, Wojciech [SAP11116781] pl
dc.contributor.author Hebda, Maciej pl
dc.contributor.author Stochel, Grażyna [SAP11011061] pl
dc.date.accessioned 2014-12-18T08:28:09Z
dc.date.available 2014-12-18T08:28:09Z
dc.date.issued 2006 pl
dc.identifier.issn 1439-4235 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/2323
dc.language eng pl
dc.title Redox-controlled photosensitization of nanocrystalline titanium dioxide pl
dc.type JournalArticle pl
dc.description.physical 2384-2391 pl
dc.abstract.en Photosensitization of nanocrystalline titanium dioxide materials has been achieved by chemisorption of the pentacyanothiamineferrate(II) complex, which offers a relatively high redox potential that determines the photoelectrochemical properties of the photosensitized TiO2. The adsorbed pentacyanoferrate complex binds to TiO2 through the cyanide bridge and forms a new surface complex characterized by a metal-to-metal charge-transfer transition (MMCT) (FeII→TiIV). The photosensitization can be observed only at low potentials at which FeII moieties are present. Photocurrent switching between anodic and cathodic can be induced by varying either the photoelectrode potential or the wavelength of the incident light. Simple molecular modeling—together with spectroscopic and electrochemical measurements—allows the elucidation of the mechanism of the observed photoelectrochemical behavior. pl
dc.subject.en electrochemistry pl
dc.subject.en metal–metal interactions pl
dc.subject.en photochemistry pl
dc.subject.en semiconductors pl
dc.subject.en thiamine pl
dc.description.volume 7 pl
dc.description.number 11 pl
dc.identifier.doi 10.1002/cphc.200600407 pl
dc.identifier.eissn 1439-7641 pl
dc.title.journal ChemPhysChem pl
dc.language.container eng pl
dc.affiliation Wydział Chemii : Zakład Chemii Nieorganicznej pl
dc.subtype Article pl

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