Dan Wu,a Yuchuan Liu,a Yue Wu,ab Bin Tana and Zailai Xie*ab
a State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, P.R. China
b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fuzhou, P.R. China