Synergistic effects of the Rh–S bond and spatially separated dual cocatalysts on photocatalytic overall water splitting activity of ZnIn2S4 nanosheets under visible light irradiation

Abstract

Photodeposition of dual-cocatalysts Pt–Cr or Rh–Cr on the surface of ZnIn₂S₄ is used to achieve overall water splitting. Compared with the hybrid loading of the Pt element and Cr element, the formation of the Rh–S bond results in space separation of the Rh element and Cr element. The Rh–S bond and space separation of cocatalysts promote the transfer of bulk carriers to the surface and inhibit self-corrosion.