ZnIn 2 S 4 nanosheets with tunable dual vacancies for efficient sacrificial-agent-free H 2 O 2 photosynthesis

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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.