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Photogeneration of Highly Amphiphilic TiO2 Surfaces

1998; Volume: 10; Issue: 2 Linguagem: Inglês

10.1002/(sici)1521-4095(199801)10

1521-4095

Rong Wang, Kazuhito Hashimoto, Akira Fujishima, Makoto Chikuni, Eiichi Kojima, Atsushi Kitamura, Mitsuhide Shimohigoshi, Toshiya Watanabe,

TiO2 Photocatalysis and Solar Cells

Advanced MaterialsVolume 10, Issue 2 p. 135-138 Communication Photogeneration of Highly Amphiphilic TiO2 Surfaces Rong Wang, Rong WangSearch for more papers by this authorKazuhito Hashimoto, Kazuhito Hashimoto Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153 (Japan)Search for more papers by this authorAkira Fujishima, Akira Fujishima Department of Applied Chemistry, Faculty of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113 (Japan)Search for more papers by this authorMakoto Chikuni, Makoto Chikuni Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this authorEiichi Kojima, Eiichi Kojima Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this authorAtsushi Kitamura, Atsushi Kitamura Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this authorMitsuhide Shimohigoshi, Mitsuhide Shimohigoshi Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this authorToshiya Watanabe, Toshiya Watanabe Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this author Rong Wang, Rong WangSearch for more papers by this authorKazuhito Hashimoto, Kazuhito Hashimoto Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153 (Japan)Search for more papers by this authorAkira Fujishima, Akira Fujishima Department of Applied Chemistry, Faculty of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113 (Japan)Search for more papers by this authorMakoto Chikuni, Makoto Chikuni Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this authorEiichi Kojima, Eiichi Kojima Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this authorAtsushi Kitamura, Atsushi Kitamura Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this authorMitsuhide Shimohigoshi, Mitsuhide Shimohigoshi Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this authorToshiya Watanabe, Toshiya Watanabe Research & Development Center, TOTO Ltd., 2-8-1, Honson Chigasaki-shi, Kanagawa 253 (Japan)Search for more papers by this author First published: 26 January 1999 https://doi.org/10.1002/(SICI)1521-4095(199801)10:2 3.0.CO;2-MCitations: 708AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The photoconvertible surface wettability of TiO2 materials—UV illumination of these materials can generate surfaces that display a 0° contact angle for both water and oily liquids—is investigated. Frictional force, X-ray photoelectron, and Fourier transform infrared spectroscopies are used to supply information at a microscopic level. It is concluded that UV illumination is able to convert initially hydrophobic TiO2 surfaces into highly amphiphilic ones. This behavior is ascribed to photogenerated Ti3+ defect sites that favor dissociative water adsorption. References 1 A. Fujishima, K. Honda, Nature 1972, 238, 37. 10.1038/238037a0 CASPubMedWeb of Science®Google Scholar 2 K. C. Chang, A. Heller, B. Schwartz, S. Menezes, B. Miller, Science 1977, 196, 1097. 10.1126/science.196.4294.1097 CASPubMedWeb of Science®Google Scholar 3 B. J. Tufts, I. L. Abrahams, P. G. Santangelo, G. N. Ryba, L. G. 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