1. 1) B. Ohtani, Phys. Chem. Chem. Phys., 16, 1788 (2014).
2. 2) A. Fujishima, X. Zhang, and D. A. Tryk, Surf. Sci. Rep., 63, 515 (2008).
3. 3) B. Ohtani, J. Photochem. Photobiol., C, 11, 157 (2010).
4. 4) B. Ohtani, Catalysts, 6, 192 (2016).
5. 5) For example: B. Ohtani, O.-O. Prieto-Mahaney, F. Amano, N. Murakami, and R. Abe, J. Adv. Oxid. Technol., 13, 247 (2010).