1. State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry Fuzhou University Fuzhou 350116 P. R. China
2. Department of Chemistry Longyan University Longyan 364000 P. R. China
3. Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics, Institute of Physics Chinese Academy of Science No. 8, 3rd South Street, Zhongguancun, Haidian District Beijing 100190 P. R. China