2026-10-12T21:54:42Z https://www.scidb.cn/oai

10.57760/sciencedb.011tl 2026-09-07T15:17:02Z

2026-09-07 Over-all Water Splitting over Core/Shell Zn3As2/ZnO Catalysts Driven by Visible-Light doi:10.57760/sciencedb.011tl en Herein, a Zn3As2/ZnO core/shell catalyst was synthesized via an in-situ oxidation method, which exhibited excellent performance for visible-light-driven over-all water splitting. The results indicate that the ZnO shell inhibits the photo-corrosion and enhances the stability of the catalyst. Under visible light irradiation, the hydrogen evolution amount reached 56.33 μmol·g−1 within 3 h, which is 1.75 times that of pure Zn3As2, and it operated for 9 h without decay. Structural characterization confirms that the coherent Zn3As2/ZnO interface formed by in-situ oxidation suppresses defect recombination through lattice matching. The formed heterojunction significantly promotes the separation and migration of photogenerated carriers, thereby extending their lifetime. As a stable protective layer, ZnO not only reduces the hydrogen evolution overpotential and the charge transfer and mass transfer impedances but also effectively inhibits the photo-corrosion of Zn3As2. core/shell structure; Zn3As2/ZnO catalyst; photocatalytic over-all water splitting Yin Zhiquan Lv Gongxuan EMBARGO https://creativecommons.org/licenses/by-nc-nd/4.0/ dataset Science Data Bank