1. 1) D. E. Ollis and H. Al-Ekabi, Eds., Photocatalytic Purification and Treatment of Water and Air, Elsevier, Amsterdam/London/New York/Tokyo (1993).
2. 2) N. Serpone and E. Pelizzetti, Eds., Photocatalysis: Fundamentals and Applications, John Wiley & Sons, New York N. Y. (1989).
3. 3) I. Sopyan, M. Watanabe, S. Murasawa, K. Hashimoto, and A. Fujishima, J. Electroanal. Chem., 415, 183 (1996).
4. 4) B. O’Regan and M. Gratzel, Nature, 353, 737 (1991).
5. 5) N. K. Nazeeruddin, A. Kay, J. Rodicio, R. Humphry Baker, E. Muller, P. Liska, N. Vlachopoulos, and M. Gratzel, J. Am. Chem. Soc., 115, 6382 (1993).