Hierarchical ZnIn S /MoSe Nanoarchitectures for Efficient Noble-Metal-Free Photocatalytic Hydrogen Evolution under Visible Light.

A highly efficient visible-light-driven photocatalyst is urgently necessary for photocatalytic hydrogen generation through water splitting. Herein, ZnIn S hierarchical architectures assembled as ultrathin nanosheets were synthesized by a facile one-pot polyol approach. Subsequently, the two-dimensional-network-like MoSe was successfully hybridized with ZnIn S by taking advantage of their analogous intrinsic layered morphologies. The noble-metal-free ZnIn S /MoSe heterostructures show enhanced photocatalytic H evolution compared to pure ZnIn S . It is noteworthy that the optimum nanocomposite of ZnIn S /2 % MoSe photocatalyst displays a high H generation rate of 2228 μmol g  h and an apparent quantum yield (AQY) of 21.39 % at 420 nm. This study presents an unprecedented ZnIn S /MoSe metal-sulfide-metal-selenide hybrid system for H evolution. Importantly, the present efficient hybridization strategy reveals the potential of hierarchical nanoarchitectures for a multitude of energy storage and solar energy conversion applications.