Design and synthesis of ZnCo_(2)O_(4)/CdS for substantially improved photocatalytic hydrogen production

In this study,the hydrogen evolution performance of CdS nanorods is improved using ZnCo_(2)O_(4).ZnCo_(2)O_(4)nanospheres are synthesized using the hydrothermal and calcination methods,and CdS nanorods are synthesized using the solvothermal method.From the perspective of morphology,numerous CdS nanorods are anchored on the ZnCo_(2)O_(4)microspheres.According to the experimental results of photocatalytic hydrogen evolution,the final hydrogen evolution capacity of 7417.5μmol·g^(-1)·h^(-1)is slightly more than two times that of the single CdS,which proves the feasibility of our study.Through various characterization methods,it is proved that the composite sample has suitable optoelectronic properties.In addition,ZnCo_(2)O_(4)itself exhibits good conductivity and low impedance,which shortens the charge-transfer path.Overall,the introduction of ZnCo_(2)O_(4)expands the adsorption range of light and improves the performance of photocatalytic hydrogen evolution.This design can provide reference for developing high-efficiency photocatalysts.