1. Environmental Technology Research Division; Osaka Municipal Technical Research Institute; 1-6-50, Morinomiya, Joto-ku Osaka 536-8553 Japan
2. Electronic Materials Research Division; Osaka Municipal Technical Research Institute; 1-6-50, Morinomiya, Joto-ku Osaka 536-8553 Japan
3. Department of Applied Chemistry; Graduate School of Engineering; University of Hyogo; 2167 Shosha, Himeji Hyogo 671-2280 Japan
4. Institute of Multidisciplinary Research for Advanced Materials; Tohoku University; 2-1-1, Katahira, Aoba-ku Sendai 980-8577 Japan