Abstract
Flower-like spherical ZnIn2S4 superstructures about 500 nm in diameter composed of ultrathin 2–3 nm thick mesoporous nanosheets were synthesized in several minutes by facile polyol-mediated hot-injection. Due to their higher specific surface area and constituent ultrathin mesoporous nanosheets, the hierarchical ZnIn2S4 superstructures exhibited highly efficient visible-light-driven photocatalytic H2 production activity compared with the typical flower-like ZnIn2S4 microspheres prepared by the conventional hydrothermal method. Furthermore, this polyol-mediated hot-injection synthesis strategy is also applicable for the facile synthesis of other metal sulphide nanomaterials with different morphologies, such as CdS quantum dots, Bi2S3 nanorods, and hierarchical flower-like In2S3 and SnS spheres.
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