1. College of Mathematic and Electronic Information Engineering
2. Wenzhou University
3. Wenzhou 325035
4. P. R. China
5. College of Chemistry and Materials Engineering
6. Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power
7. Shanghai University of Electric Power
8. Shanghai
9. China
10. School of Chemical Science and Technology
11. Yunnan University
12. Kunming 650091