A simple template-free synthesis of ultrathin Cu2ZnSnS4nanosheets for highly stable photocatalytic H2 evolution

Abstract

Graphene-like Cu₂ZnSnS₄ nanosheets have been firstly prepared via a facile template-free approach. The products showed not only an interesting unilamellar structure with a thickness of only 2–3 nanometres but also high activity and stability for H₂ evolution from aqueous solution containing S²⁻ and SO₃²⁻ even without loading any noble metals.