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- Title
CuCu<sub>2</sub>OTiO<sub>2</sub> Nanojunction Systems with an Unusual Electron-Hole Transportation Pathway and Enhanced Photocatalytic Properties.
- Authors
Xing, Jun; Chen, Zu Peng; Xiao, Fang Yuan; Ma, Xue Yan; Wen, Ci Zhang; Li, Zhen; Yang, Hua Gui
- Abstract
Multicomponent CuCu2OTiO2 nanojunction systems were successfully synthesized by a mild chemical process, and their structure and composition were thoroughly analyzed by X-ray diffraction, transmission electron microscopy, field-emission scanning electron microscopy, and X-ray photoelectron spectroscopy. The as-prepared CuCu2OTiO2 (3 and 9 h) nanojunctions demonstrated higher photocatalytic activities under UV/Vis light irradiation in the process of the degradation of organic compounds than those of the CuCu2O, CuTiO2, and Cu2OTiO2 starting materials. Moreover, time-resolved photoluminescence spectra demonstrated that the quenching times of electrons and holes in CuCu2OTiO2 (3 h) is higher than that of CuCu2OTiO2 (9 h); this leads to a better photocatalytic performance of CuCu2OTiO2 (3 h). The improvement in photodegradation activity and electron-hole separation of CuCu2OTiO2 (3 h) can be ascribed to the rational coupling of components and dimensional control. Meanwhile, an unusual electron-hole transmission pathway for photocatalytic reactions over CuCu2OTiO2 nanojunctions was also identified.
- Publication
Chemistry - An Asian Journal, 2013, Vol 8, Issue 6, p1265
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201300019