Synthesis and characterization of a series of complexes with enhanced visible-light photocatalytic hydrogen evolution

Abstract

The complexes [Ni(HNOR)2]n·5nH2O (1), [Cd(HNOR)2]n (2), [Zn(HNOR)2·2H2O] (3), and [Co(H2NOR)2·2H2O]n·2nNO3 (4) (H2NOR = norfloxacin) are synthesized by a hydrothermal process. The structures of the complexes are determined by single-crystal X-ray diffraction. The complexes are also characterized by infrared and elemental analysis. At the same time, the promoter catalytic properties of the complexes are studied under visible light, with complex 1 enhancing the catalytic performance of gCN from 407.4 to 914.1 μmol h−1 g−1 and complex 4 enhancing the catalytic performance of gCN from 407.4 to 943.9 μmol h−1 g−1. Complexes 1 and 4 significantly enhance visible-light photocatalytic hydrogen evolution.