1. Nippon Sheet Glass Techno-Research Co., Ltd., 1, Kaidoshita, Konoike, Itami, Hyogo 664-8520, Japan, Environmental Science Research Institute, Kinki University, 3-4-1, Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan, and Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan