| AVS 54th International Symposium | |
| Advanced Surface Engineering | Wednesday Sessions |
| Session SE-WeM |
| Session: | Photocatalytic Coatings |
| Presenter: | A. Fujishima, Kanagawa Academy of Science and Technology, Japan |
| Correspondent: | Click to Email |
The recent decade has witnessed the birth and development of photocatalytic coatings.1 In the early 1990s, we proposed the concept of photocatalytic thin film coatings for deodorizing, self-cleaning, and antibacterial uses.2 In 1997, we reported the photo-induced superhydrophilic effect of TiO2 surface,3 and proposed the concept of antifogging surface, and the concept of self-cleaning based on the photocatalytic and superhydrophilic actions of TiO2.4 Nowadays, these concepts have all born out real products. In Japan, self-cleaning building materials have covered tiles, glass, coatings, polymer films, aluminum sidewalls, and so on. Air-cleaners, equipped with photocatalytic filters, have got recognition of consumers. Antibacterial tiles have been used in hospitals, hotels, and restaurants. Recent news is the carriage of high-speed railway system of Japan will be coated with photocatalytic self-cleaning coating. Besides these matured techniques, we are now studying new applications of photocatalytic coatings; these include anticorrosion coatings,5 multichromic coatings,6 low reflection self-cleaning coatings,7 and heat-transfer applications,2 etc. We are also thinking of the development visible-light responsive photocatalytic coatings and the standardization of photocatalytic coatings.1 Our photocatalyst museum, which started three years ago, provides exhibition for companies' products as well as information service for consumers and researchers.
1 A. Fujishima, X. Zhang, C. R. Chimie 9 (2006) 750.
2 K. Hashimoto, H. Irie, A. Fujishima, Japn. J. Appl. Phys. 44(2005) 8269.
3 R. Wang, K. Hashimoto, A. Fujishima, et al. Nature 388 (1997) 431.
4 R. Wang, K. Hashimoto, A. Fujishima, et al. Adv. Mater. 10 (1998) 135.
5 T. Tatsuma, S. Saitoh, Y. Ohko, A. Fujishima, Chem. Mater. 13 (2001) 2838.
6 Y. Ohko, T. Tatsuma, A. Fujishima et al., Nature Mater. 2 (2003) 29.
7 X.-T. Zhang, A. Fujishima et al., J. Phys. Chem. B 110 (2006) 25142.