1. Ahmed H. A. Dabwan:
Faculty of Chemical Engineering Technology, Tati University College, Jalan Panchor, Teluk Kalong, 24000 Kemaman, Terengganu, Malaysia
2. Kiyoyuki Egusa:
Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
3. Daizo Imai:
Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
4. Hideyuki Katsumata:
Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan
5. Tohru Suzuki:
Environmental Preservation Center, Mie University, Tsu, Mie 514-8507, Japan
6. Satoshi Kaneco:
Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Tsu, Mie 514-8507, Japan