1. State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University Fuzhou Fujian 350116 P. R. China
2. Institute of Luminescent Materials and Information DisplayCollege of Materials Science and EngineeringHuaqiao University Xiamen Fujian 361021 P. R. China
3. Fujian Key Laboratory of Photoelectric Functional MaterialsCollege of Materials Science and EngineeringHuaqiao University Xiamen Fujian 361021 P. R. China