The influence of the sacrificial agent nature on transformations of the Zn(OH)₂/Cd_0.3Zn_0.7S photocatalyst during hydrogen production under visible light.

ABSTRACT: Photocatalysts based on zinc hydroxide and a solid solution of CdS and ZnS were prepared via the precipitation method and used for photocatalytic hydrogen production from aqueous solutions of inorganic (Na₂S/Na₂SO₃) and organic (ethanol) sacrificial agents. The photocatalysts were tested in cyclic experiments for hydrogen evolution and studied using X-ray diffraction (XRD), UV-Vis diffuse reflectance spectroscopy, high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray photoelectron spectroscopy (XPS) techniques. Different transformations of the β-Zn(OH)₂ co-catalyst were observed in the presence of inorganic and organic sacrificial agents; namely, ZnS was formed in Na₂S/Na

SUBMITTER: Markovskaya DV 

PROVIDER: S-EPMC9048281 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature