1. Henan Provincial Key Laboratory of Surface and Interface Science
2. Zhengzhou University of Light Industry
3. Zhengzhou 450002
4. P. R. China
5. Institute of Organic Chemistry and Biochemistry
6. Czech Academy of Sciences
7. 16610 Prague 6
8. Czech Republic
9. School of Chemistry of Materials Engineering
10. Wenzhou University
11. Wenzhou 325027
12. P.R. China