1. Eco-Town Collaborative R&D Center for the Environment and Recycling, Kyushu Institute of Technology, Hibikino 2-4, Wakamatsu, Kitakyushu, Fukuoka 808-0196, Japan
2. Chemical & Textile Research Institute, Fukuoka Industrial Technology Center, Kamikoga 3-2-1, Tikushino, Fukuoka 818-8540, Japan