Preparation and properties of Cu-grafted transparent TiO2-nanosheet thin films |
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Authors: | Akira Nakajima Yoshinori Akiyama Sayaka Yanagida Tomohisa Koike Toshihiro Isobe Yoshikazu Kameshima Kiyoshi Okada |
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Affiliation: | Department of Metallurgy and Ceramics Science, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro, Tokyo 152-8552, Japan |
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Abstract: | Transparent TiO2 nanosheet thin films were prepared using layer-by-layer method with poly(diallyldimethylammonium chloride) as a counter polymer. The possibility of photocatalysis by the light in the long wavelength range was examined by grafting Cu on the film. Photocatalytic decomposition activity for gaseous 2-propanol under UV illumination without light for electron excitation of TiO2 nanosheet was increased by Cu grafting, suggesting that the interfacial charge transfer mechanism is effective also for nanosheet films. |
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Keywords: | Interfacial charge transfer Nanosheet Photocatalyst TiO2 Layer-by-layer |
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