1. State Key Laboratory of Photocatalysis on Energy and Environment; Fuzhou University; Fuzhou 350002 P. R. China
2. Department of Environmental Science and Engineering; Fuzhou University; Minhou Fujian 350108 P. R. China
3. State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 P. R. China