In this study, zinc oxide nanoparticles were synthesized via a facile hydrothermal and solvothermal method and were covered by zinc sulfate using a chemical approach forming ZnO@ZnS core–shell nanostructures. Different techniques like XRD, BET, FESEM, PL, and UV–Vis spectroscopy as well as photocatalytic activity of ZnO, ZnS, and ZnO@ZnS results were investigated to confirm the nanostructure and homogeneous distribution of particles inside the matrix. In addition, the scavenger study indicates that all charge carriers and reactive radicals contribute by roughly close extent, which explains the observed increase in the rate of degradation. The photocatalytic activity was evaluated under UV light toward MO and RhB dyes. For degrading MO solution under UV irradiation, it is found that both the photocatalytic performances of ZnO@ZnS are much higher (98.6%) than those of pure ZnO (54%). The photocatalytic mechanism under UV light irradiation was proposed. The complex ZnO@ZnS nanocable provide a facile, low cost, high surface-to-volume ratio, high photocatalytic efficiency, and high reusability, which shall be also promising in many related areas, such as solar energy conversion, water splitting, and energy storage.

在这项研究中，氧化锌纳米颗粒通过简便的水热和溶剂热方法合成，并使用化学方法被硫酸锌覆盖，形成 ZnO@ZnS 核壳纳米结构。研究了 XRD、BET、FESEM、PL 和 UV-Vis 光谱等不同技术以及 ZnO、ZnS 和 ZnO@ZnS 结果的光催化活性，以确认基质内颗粒的纳米结构和均匀分布。此外，清除剂研究表明，所有电荷载流子和反应性自由基的贡献程度大致接近，这解释了观察到的降解速率的增加。在紫外光下评估了对 MO 和 RhB 染料的光催化活性。为了在紫外线照射下降解 MO 溶液，结果发现，ZnO@ZnS 的光催化性能（98.6%）远高于纯 ZnO（54%）。提出了紫外光照射下的光催化机理。复合ZnO@ZnS纳米电缆具有简便、低成本、高比表面积、高光催化效率和高可重复使用性，在太阳能转换、水分解和能源等许多相关领域也将具有广阔的前景。贮存。