The Cd_0.3Zn_0.7S photocatalysts modified by nickel hydroxide were prepared and characterized by different experimental techniques including X-ray diffraction, UV–vis spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The obtained photocatalysts were tested in the photocatalytic hydrogen evolution from ethanol aqueous solutions under visible light irradiation (λ = 450 nm). The nickel-modified photocatalysts were found to be more active than the zinc-modified ones. The reasons of high activity of Ni-contained photocatalysts and their transformations during the photocatalytic hydrogen production were discussed. The dependences of hydrogen production rate on ethanol and NaOH concentrations were obtained, the highest value of the photocatalytic activity was 27 mmol h⁻¹ g⁻¹ for 1%Pt/10% Ni(OH)₂/Cd_0.3Zn_0.7S (50% vol. ethanol, 1 M NaOH), apparent quantum efficiency exceeded 90%. A kinetic model describing the experimental data was proposed.

镉_0.3锌_0.7制备了用氢氧化镍改性的S光催化剂，并通过不同的实验技术进行了表征，包括X射线衍射，UV可见光谱，透射电子显微镜和X射线光电子光谱。在可见光照射下（λ＝ 450nm）测试从乙醇水溶液中光催化氢释放出的光催化剂中所获得的光催化剂。发现镍改性的光催化剂比锌改性的光催化剂更具活性。讨论了含镍光催化剂高活性的原因及其在光催化制氢过程中的转变。得到了氢气产生速率对乙醇和NaOH浓度的依赖性，其光催化活性的最大值为27 mmol h ^-1  g ^-1对于1％Pt / 10％Ni（OH）₂ / Cd _0.3 Zn _0.7 S（50％体积的乙醇，1 M NaOH），表观量子效率超过90％。提出了描述实验数据的动力学模型。