1. Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China
2. Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, P. R. China
3. College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
4. UCSI University, 1 Jalan Puncak Menara Gading, UCSI Heights, 56000 Cheras, Kuala Lumpur, Malaysia