1. State Key Laboratory of Chemical Resource Engineering
2. Beijing University of Chemical Technology
3. Beijing 100029
4. P. R. China
5. BUCT-CWRU International Joint Laboratory
6. College of Materials Science and Engineering
7. Beijing Institute of Technology
8. Beijing 100081
9. School of Materials Science and Engineering
10. Beijing University of Technology
11. Department of Physics
12. The Islamia University of Bahawalpur
13. Bahawalpur
14. Pakistan
15. Department of Engineering
16. Quchan Branch
17. Islamic Azad University
18. Quchan
19. Iran