TiO2 Photocatalysis: A Historical Overview and Future Prospects

• Hashimoto Kazuhito

  Research Center for Advanced Science and Technology, The University of Tokyo Department of Applied Chemistry, The University of Tokyo

• Irie Hiroshi

  Department of Applied Chemistry, The University of Tokyo

• Fujishima Akira

  Kanagawa Academy of Science and Technology

Bibliographic Information

Other Title

• TiO₂ Photocatalysis: A Historical Overview and Future Prospects
• Invited Review Paper TiO 2 Photocatalysis: A Historical Overview and Future Prospects
• Understanding TiO2 photocatalysis: mechanisms and materials
• TiO2 photocatalytics: a historical overview and future prospects

Abstract

Photocatalysis has recently become a common word and various products using photocatalytic functions have been commercialized. Among many candidates for photocatalysts, TiO₂ is almost the only material suitable for industrial use at present and also probably in the future. This is because TiO₂ has the most efficient photoactivity, the highest stability and the lowest cost. More significantly, it has been used as a white pigment from ancient times, and thus, its safety to humans and the environment is guaranteed by history. There are two types of photochemical reaction proceeding on a TiO₂ surface when irradiated with ultraviolet light. One includes the photo-induced redox reactions of adsorbed substances, and the other is the photo-induced hydrophilic conversion of TiO₂ itself. The former type has been known since the early part of the 20th century, but the latter was found only at the end of the century. The combination of these two functions has opened up various novel applications of TiO₂, particularly in the field of building materials. Here, we review the progress of the scientific research on TiO₂ photocatalysis as well as its industrial applications, and describe future prospects of this field mainly based on the present authors’ work.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 44 (12), 8269-8285, 2005

  The Japan Society of Applied Physics

Keywords

• titanium dioxide
• Honda–Fujishima effect
• photoelectrolysis
• redox reaction
• hydrophilic conversion
• environmental application

Details

• CRID: 1390282681244435072
• NII Article ID: 210000155492
• NII Article ID: 10016958133
• NII Article ID: 130004532979
• NII Book ID: AA10457675
• DOI: 10.1143/jjap.44.8269
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• ISSN: http://id.crossref.org/issn/00214922
• NDL BIB ID: 7747223
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7747223
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.8269
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.8269/pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed