Zn_0.8Cd_0.2S Hollow Spheres with a Highly Dispersed Ni Dopant for Boosting Photocatalytic Hydrogen Generation.

ABSTRACT: Facilitating charge separation and increasing surface active sites have always been the goals of photocatalysis. Herein, we synthesized a Ni-doped Zn_0.8Cd_0.2S hollow sphere photocatalyst with a facile one-step hydrothermal method. Energy-dispersive spectroscopy mapping showed the high dispersion of Ni ions in the Zn_0.8Cd_0.2S hollow spheres. The experimental results confirmed that Ni doping reduced the band structure of the substrate, suppressed the recombination of photo-induced electrons and holes, and provided more reactive sites. Therefore, the photocatalytic activity had been greatly improved. As a consequence, the detected photocatalytic H₂ evolution rate increased up to 33.81 mmol·h^-1·g^-1 over an optimal Ni

SUBMITTER: Luo Y 

PROVIDER: S-EPMC8173556 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature