1. School of Mech. Eng.
2. Korea University
3. Seoul
4. Korea
5. Photocatalysis International Research Center
6. Research Institute for Science & Technology
7. Tokyo University of Science
8. Noda
9. Japan
10. Petrochemicals Research Chair
11. Department of Chemistry
12. College of Science
13. King Saud University
14. Riyadh 11451