ZnIn2S4 nanosheets with tunable dual vacancies for efficient sacrificial-agent-free H2O2 photosynthesis

ZnIn 2 S 4 nanosheets with tunable concentration of dual vacancies were prepared. Introducing dual vacancies effectively promotes photocarrier separation, facilitates O 2 adsorption, and inhibits H 2 O 2 decomposition by increasing hydrophilicity.