S-scheme Zn2In2S5/CdS nanosheet-on-nanosheet heterostructures with tight interface contacts promote efficient H2O2 photoproduction from pure water

Key Points

• This research aims to explore the effectiveness of S-scheme Zn2In2S5/CdS heterostructures in producing hydrogen peroxide from pure water through photocatalysis.
• Developed and characterized Zn2In2S5/CdS nanosheet-on-nanosheet heterostructures.
• Evaluated photocatalytic activity under sunlight conditions for hydrogen peroxide production.
• Analyzed the impact of interface contacts on photocatalytic efficiency.
• Heterostructures significantly improved H2O2 yield compared to individual components with a production rate increase of X%.
• Demonstrated enhanced photon absorption efficiency due to optimized interface contacts, resulting in Y-fold increase in reaction rate.
• Achieved sustainable production levels, supporting the use of renewable energy for chemical synthesis.