In recent years,many effective photocatalysts have been developed to solve the problem of environmental pollution and clean energy shortage.In this paper,non-noble metal cocatalyst Ni_(3)N nanoparticles supported Zn_(...In recent years,many effective photocatalysts have been developed to solve the problem of environmental pollution and clean energy shortage.In this paper,non-noble metal cocatalyst Ni_(3)N nanoparticles supported Zn_(0.5)Cd_(0.5)S(ZCS)nanorods(Ni_(3)N/ZCS)composites were successfully synthesized by ultrasonic method.The hydrogen production efficiencies of the photocatalysts were tested under visible light,which was found that when the loading of Ni_(3)N was 2%of the mass of ZCS,and the Ni_(3)N/ZCS composite had the best hydrogen evolution performance,which could reach 70.3 mmol·h^(-1)·g^(-1).In addition,the quantum efficiency under 420 nm monochromatic light irradiation was 27.2%.Through different characterization analyses,such as X-ray diffraction(XRD),scanning electron microscopy(SEM),and UV-Vis diffuse reflectance spectra(DRS),a possible photocatalytic mechanism was proposed,providing some reference values for non-precious metals as cocatalysts.展开更多
基金supported by the Natural Science Foundation of Jilin Province,China(No.YDZJ202101ZYTS067)the Foundation of Xinzhou Normal University,China(No.2021KY01).
文摘In recent years,many effective photocatalysts have been developed to solve the problem of environmental pollution and clean energy shortage.In this paper,non-noble metal cocatalyst Ni_(3)N nanoparticles supported Zn_(0.5)Cd_(0.5)S(ZCS)nanorods(Ni_(3)N/ZCS)composites were successfully synthesized by ultrasonic method.The hydrogen production efficiencies of the photocatalysts were tested under visible light,which was found that when the loading of Ni_(3)N was 2%of the mass of ZCS,and the Ni_(3)N/ZCS composite had the best hydrogen evolution performance,which could reach 70.3 mmol·h^(-1)·g^(-1).In addition,the quantum efficiency under 420 nm monochromatic light irradiation was 27.2%.Through different characterization analyses,such as X-ray diffraction(XRD),scanning electron microscopy(SEM),and UV-Vis diffuse reflectance spectra(DRS),a possible photocatalytic mechanism was proposed,providing some reference values for non-precious metals as cocatalysts.
