Scientists from Tomsk Polytechnic University (TPU) in Russia, in collaboration with Chinese researchers, have introduced an innovative approach to enhance the electrocatalytic properties of molybdenum disulfide using visible light. This method aims to address the challenges of synthesizing highly defective hybrid structures based on thin layers of molybdenum disulfide in a cost-effective and environmentally friendly manner. The research, funded by the Russian Science Foundation, focuses on utilizing molybdenum disulfide as a catalyst for producing 'green' hydrogen, a promising eco-friendly fuel for vehicles. The developed technique involves utilizing a solution of iron ions and a visible light source, which can potentially be replaced by sunlight, to create the desired material. The modified catalyst demonstrates the ability to generate the same amount of hydrogen from water while consuming 20% less energy compared to traditional methods. This advancement provides a foundation for the future development of efficient and affordable systems for 'green' hydrogen production, contributing to the promotion of alternative energy sources and mitigating the environmental impact of transportation. Furthermore, the study explores the potential applications of the modified molybdenum disulfide beyond hydrogen production, including its use in sensors, technical optics, and opto-electronics. By locally reducing the material's thickness, creating defects, and depositing magnetic iron oxide nanoparticles in specific areas, the researchers aim to enhance the functionality of various devices in the future. The collaboration between TPU scientists and their Chinese counterparts from prestigious institutes signifies a significant step towards advancing catalytic technologies for sustainable energy production and environmental preservation.