1. Department
of Chemistry, Center for Macromolecular Science and Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
2. Institute
of Nanotechnology, Gebze Technical University, Gebze, Kocaeli 41400, Turkey
3. The
Education Ministry Key Laboratory and Joint International Laboratory
of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional
Materials, Shanghai Normal University, Shanghai 200234, China