“…Transition-metal chalcogenides have gained significant attention in various applications such as solar cell optical device components, photocatalysis, and energy storage. − In our previous works, Cu–In–Zn–S, MoSe 2 , MoSe 2 /CQDs, CuS/graphene, and ZnS/graphene hybrid materials have demonstrated remarkable catalytic capabilities when subjected to irradiation across the UV, visible, and near-infrared spectra. Nickel sulfide is considered a potentially effective visible-light photocatalyst. − Introducing high concentrations of low-coordination-vacancy atoms can regulate the energy band structure and light absorption range of semiconductors . High concentrations of sulfur vacancies are easily generated in nickel sulfide semiconductors.…”