Integration of CdS with a Fiber-Based Cadmium Coordination Polymer for Turning On Photocatalytic Oxidative Coupling Reactions
Chao Huang, Di Wang, Dianbo Zhang, Zhichao Shao, Qiang Zhang, Junxiao Wang, Yingying Zhang, Na Qin, Liwei Mi
Abstract
Accurate control over the structure and optoelectronic properties of inorganic semiconductors and coordination polymers (CPs) to fabricate hybrid composites has emerged as a promising alternative to realize photocatalytic reactions under visible light. In this work, cadmium sulfide (CdS), a representative inorganic photocatalyst, was decorated in situ on a membrane (Cd-CP/PAN) composed of a cadmium coordination polymer (Cd-CP) and polyacrylonitrile (PAN) via an electrospinning strategy to generate CdS@Cd-CP/PAN composites. These composites could function as efficient heterogeneous catalysts to promote photocatalytic oxidative coupling reactions for the synthesis of imines in air under visible light. In particular, the CdS@Cd-CP/PAN composite with 12.4% CdS loading provided a well-defined platform with high photocatalytic activity and selectivity, which were significantly better than those of CdS and Cd-CP under the same reaction conditions.