Hydrothermal Synthesis and Photocatalytic Performance of Zinc Oxysulfide for Hydrogen Evolution
Duisebayev T. Abdullah M. Tezekbay Y. Zhazitov M. Kydyrbay N. Nuraje N. Toktarbaiuly O.
April 2025Engineered Science Publisher
Engineered Science
2025#34
The global shift toward sustainable energy requires the development of efficient hydrogen production. In this work, zinc oxysulfide (ZnOS) photocatalysts were produced by the hydrothermal method, where careful control of precursor ratios, reaction temperatures, and annealing conditions enabled a precise tuning of structural and optical properties. Experimental characterization also demonstrated that annealing transforms initially rough, spherical ZnOS particles into smoother, highly crystalline forms, as evidenced in scanning electron microscope (SEM) and X-ray diffraction (XRD). Ultra-violet visible (UV-Vis) absorption spectroscopy reveals significant enhancements in visible light absorption within the 350 nm range, indicating changes in electronic structures and increased charge separation. Ultimately, the successful deposition of ZnOS films onto glass substrates demonstrates the scalability and adaptability of our synthesis route for optoelectronic applications. This work offers new insights into the behavior of synthesis parameters and photocatalytic performance, suggesting a promising path forward for the preparation of high-performance, tunable ZnOS materials for sustainable hydrogen production.
Improved charge separation , Renewable energy , Tunable band gaps , Visible light absorption
Text of the article Перейти на текст статьи
Renewable Energy Laboratory, National Laboratory Astana (NLA), Nazarbayev University, Kabanbay Batyr 53, Astana, 010000, Kazakhstan
Department of Chemical & Materials Engineering, School of Engineering & Digital Science, Nazarbayev University, Astana, 010000, Kazakhstan
Renewable Energy Laboratory
Department of Chemical & Materials Engineering
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026