Digitally Controlled Kinetics of Titania-photocatalyzed Oxygen Evolution

Digitally Controlled Kinetics of Titania-photocatalyzed Oxygen Evolution

The light-intensity dependence (LID) of oxygen evolution using titanium(IV) oxide particles and electron acceptors under intense UV-LED irradiation was multimodal; in general, the LID changed from second to first order, and then fourth order in some cases. Such LID-order switching could reasonably b...

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Veröffentlicht in:Chemistry letters 2018-03, Vol.47 (3), p.373-376
Hauptverfasser: Takeuchi, Shugo, Takashima, Mai, Takase, Mai, Ohtani, Bunsho
Format: Artikel
Sprache:eng
Schlagworte:
Chemical evolution
Dependence
Luminous intensity
Titanium dioxide
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Zusammenfassung:The light-intensity dependence (LID) of oxygen evolution using titanium(IV) oxide particles and electron acceptors under intense UV-LED irradiation was multimodal; in general, the LID changed from second to first order, and then fourth order in some cases. Such LID-order switching could reasonably be explained using a kinetic model in which the probability of multiple-electron (positive holes) accumulation in each particle governs the overall rates digitally.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.171093