1. Key Laboratory for Functional Molecular Solids of the Education Ministry of China College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 P. R. China
2. College of Chemistry and Materials Science Huaibei Normal University Huaibei 235000 P. R. China
3. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Shanghai Institute of Ceramics Chinese Academy of Sciences Wuhu 200050 P. R. China
4. Anhui Province International Research Center on Advanced Building Materials Anhui Jianzhu University Hefei 230601 China